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Veroeffentlicht	Quelle	Titel	Severity	CVEs	Kategorie
2017-01-31 15:00	security_insider	Was ist Malware?	-	—	security_news
2016-12-20 00:00	apache_httpd_sec	CVE-2016-8743: Apache HTTP Server, prior to release 2.4.25 (and 2.2.32), accepted a broad pattern of unusual whitespace patterns from the user-agent, including bare CR, FF, VTAB in parsing the request line and request header lines, as well as HTAB in parsing the request line. Any bare CR present in request lines was treated as whitespace and remained in the request field member "the_request", while a bare CR in the request header field name would be honored as whitespace, and a bare CR in the request header field value was retained the input headers array. Implied additional whitespace was accepted in the request line and prior to the ':' delimiter of any request header lines. RFC7230 Section 3.5 calls out some of these whitespace exceptions, and section 3.2.3 eliminated and clarified the role of implied whitespace in the grammer of this specification. Section 3.1.1 requires exactly one single SP between the method and request-target, and between the request-target and HTTP-version, followed immediately by a CRLF sequence. None of these fields permit any (unencoded) CTL character whatsoever. Section 3.2.4 explicitly disallowed any whitespace from the request header field prior to the ':' character, while Section 3.2 disallows all CTL characters in the request header line other than the HTAB character as whitespace. These defects represent a security concern when httpd is participating in any chain of proxies or interacting with back-end application servers, either through mod_proxy or using conventional CGI mechanisms. In each case where one agent accepts such CTL characters and does not treat them as whitespace, there is the possiblity in a proxy chain of generating two responses from a server behind the uncautious proxy agent. In a sequence of two requests, this results in request A to the first proxy being interpreted as requests A + A' by the backend server, and if requests A and B were submitted to the first proxy in a keepalive connection, the proxy may interpret response A' as the response to request B, polluting the cache or potentially serving the A' content to a different downstream user-agent. These defects are addressed with the release of Apache HTTP Server 2.4.25 and coordinated by a new directive; HttpProtocolOptions Strict which is the default behavior of 2.4.25 and later. By toggling from 'Strict' behavior to 'Unsafe' behavior, some of the restrictions may be relaxed to allow some invalid HTTP/1.1 clients to communicate with the server, but this will reintroduce the possibility of the problems described in this assessment. Note that relaxing the behavior to 'Unsafe' will still not permit raw CTLs other than HTAB (where permitted), but will allow other RFC requirements to not be enforced, such as exactly two SP characters in the request line.	-	CVE-2016-8743	vendor_advisory
2016-12-20 00:00	apache_httpd_sec	CVE-2016-0736: Prior to Apache HTTP release 2.4.25, mod_sessioncrypto was encrypting its data/cookie using the configured ciphers with possibly either CBC or ECB modes of operation (AES256-CBC by default), hence no selectable or builtin authenticated encryption. This made it vulnerable to padding oracle attacks, particularly with CBC. An authentication tag (SipHash MAC) is now added to prevent such attacks.	-	CVE-2016-0736	vendor_advisory
2016-12-20 00:00	apache_httpd_sec	CVE-2016-2161: Malicious input to mod_auth_digest will cause the server to crash, and each instance continues to crash even for subsequently valid requests.	-	CVE-2016-2161	vendor_advisory
2016-12-04 00:00	apache_httpd_sec	CVE-2016-8740: The HTTP/2 protocol implementation (mod_http2) had an incomplete handling of the LimitRequestFields directive. This allowed an attacker to inject unlimited request headers into the server, leading to eventual memory exhaustion.	-	CVE-2016-8740	vendor_advisory
2016-07-18 00:00	apache_httpd_sec	CVE-2016-5387: HTTP_PROXY is a well-defined environment variable in a CGI process, which collided with a number of libraries which failed to avoid colliding with this CGI namespace. A mitigation is provided for the httpd CGI environment to avoid populating the "HTTP_PROXY" variable from a "Proxy:" header, which has never been registered by IANA. This workaround and patch are documented in the ASF Advisory at asf-httpoxy-response.txt and incorporated in the 2.4.25 and 2.2.32 releases. Note: This is not assigned an httpd severity, as it is a defect in other software which overloaded well-established CGI environment variables, and does not reflect an error in HTTP server software.	-	CVE-2016-5387	vendor_advisory
2016-07-05 00:00	apache_httpd_sec	CVE-2016-4979: For configurations enabling support for HTTP/2, SSL client certificate validation was not enforced if configured, allowing clients unauthorized access to protected resources over HTTP/2. This issue affected releases 2.4.18 and 2.4.20 only.	-	CVE-2016-4979	vendor_advisory
2016-04-11 00:00	apache_httpd_sec	CVE-2016-1546: By manipulating the flow control windows on streams, a client was able to block server threads for long times, causing starvation of worker threads. Connections could still be opened, but no streams where processed for these. This issue affected HTTP/2 support in 2.4.17 and 2.4.18.	-	CVE-2016-1546	vendor_advisory
2015-06-09 00:00	apache_httpd_sec	CVE-2015-3183: An HTTP request smuggling attack was possible due to a bug in parsing of chunked requests. A malicious client could force the server to misinterpret the request length, allowing cache poisoning or credential hijacking if an intermediary proxy is in use.	-	CVE-2015-3183	vendor_advisory
2015-06-09 00:00	apache_httpd_sec	CVE-2015-3185: A design error in the "ap_some_auth_required" function renders the API unusuable in httpd 2.4.x. In particular the API is documented to answering if the request required authentication but only answers if there are Require lines in the applicable configuration. Since 2.4.x Require lines are used for authorization as well and can appear in configurations even when no authentication is required and the request is entirely unrestricted. This could lead to modules using this API to allow access when they should otherwise not do so. API users should use the new ap_some_authn_required API added in 2.4.16 instead.	-	CVE-2015-3185	vendor_advisory
2015-03-05 00:00	apache_httpd_sec	CVE-2015-0253: A crash in ErrorDocument handling was found. If ErrorDocument 400 was configured pointing to a local URL-path with the INCLUDES filter active, a NULL dereference would occur when handling the error, causing the child process to crash. This issue affected the 2.4.12 release only.	-	CVE-2015-0253	vendor_advisory
2015-02-04 00:00	apache_httpd_sec	CVE-2015-0228: A stack recursion crash in the mod_lua module was found. A Lua script executing the r:wsupgrade() function could crash the process if a malicious client sent a carefully crafted PING request. This issue affected releases 2.4.7 through 2.4.12 inclusive.	-	CVE-2015-0228	vendor_advisory
2014-11-12 00:00	apache_httpd_sec	CVE-2014-3583: An out-of-bounds memory read was found in mod_proxy_fcgi. A malicious FastCGI server could send a carefully crafted response which could lead to a crash when reading past the end of a heap memory or stack buffer. This issue affects version 2.4.10 only.	-	CVE-2014-3583	vendor_advisory
2014-11-09 00:00	apache_httpd_sec	CVE-2014-8109: Fix handling of the Require line in mod_lua when a LuaAuthzProvider is used in multiple Require directives with different arguments. This could lead to different authentication rules than expected.	-	CVE-2014-8109	vendor_advisory
2014-09-08 00:00	apache_httpd_sec	CVE-2014-3581: A NULL pointer deference was found in mod_cache. A malicious HTTP server could cause a crash in a caching forward proxy configuration. This crash would only be a denial of service if using a threaded MPM.	-	CVE-2014-3581	vendor_advisory
2014-07-15 00:00	apache_httpd_sec	CVE-2014-0117: A flaw was found in mod_proxy in httpd versions 2.4.6 to 2.4.9. A remote attacker could send a carefully crafted request to a server configured as a reverse proxy, and cause the child process to crash. This could lead to a denial of service against a threaded MPM.	-	CVE-2014-0117	vendor_advisory
2014-07-15 00:00	apache_httpd_sec	CVE-2014-3523: A flaw was found in the WinNT MPM in httpd versions 2.4.1 to 2.4.9, when using the default AcceptFilter for that platform. A remote attacker could send carefully crafted requests that would leak memory and eventually lead to a denial of service against the server.	-	CVE-2014-3523	vendor_advisory
2014-07-14 00:00	apache_httpd_sec	CVE-2014-0226: A race condition was found in mod_status. An attacker able to access a public server status page on a server using a threaded MPM could send a carefully crafted request which could lead to a heap buffer overflow. Note that it is not a default or recommended configuration to have a public accessible server status page.	-	CVE-2014-0226	vendor_advisory
2014-07-14 00:00	apache_httpd_sec	CVE-2014-0231: A flaw was found in mod_cgid. If a server using mod_cgid hosted CGI scripts which did not consume standard input, a remote attacker could cause child processes to hang indefinitely, leading to denial of service.	-	CVE-2014-0231	vendor_advisory
2014-07-14 00:00	apache_httpd_sec	CVE-2014-0118: A resource consumption flaw was found in mod_deflate. If request body decompression was configured (using the "DEFLATE" input filter), a remote attacker could cause the server to consume significant memory and/or CPU resources. The use of request body decompression is not a common configuration.	-	CVE-2014-0118	vendor_advisory
2014-07-14 00:00	apache_httpd_sec	CVE-2013-4352: A NULL pointer dereference was found in mod_cache. A malicious HTTP server could cause a crash in a caching forward proxy configuration. (Note that this vulnerability was fixed in the 2.4.7 release, but the security impact was not disclosed at the time of the release.)	-	CVE-2013-4352	vendor_advisory
2014-03-17 00:00	apache_httpd_sec	CVE-2014-0098: A flaw was found in mod_log_config. A remote attacker could send a specific truncated cookie causing a crash. This crash would only be a denial of service if using a threaded MPM.	-	CVE-2014-0098	vendor_advisory
2014-03-17 00:00	apache_httpd_sec	CVE-2013-6438: XML parsing code in mod_dav incorrectly calculates the end of the string when removing leading spaces and places a NUL character outside the buffer, causing random crashes. This XML parsing code is only used with DAV provider modules that support DeltaV, of which the only publicly released provider is mod_dav_svn.	-	CVE-2013-6438	vendor_advisory
2013-10-19 00:00	apache_httpd_sec	CVE-2013-5704: HTTP trailers could be used to replace HTTP headers late during request processing, potentially undoing or otherwise confusing modules that examined or modified request headers earlier. This fix adds the "MergeTrailers" directive to restore legacy behavior.	-	CVE-2013-5704	vendor_advisory
2013-07-22 00:00	apache_httpd_sec	CVE-2013-2249: A flaw in mod_session_dbd caused it to proceed with save operations for a session without considering the dirty flag and the requirement for a new session ID.	-	CVE-2013-2249	vendor_advisory
2013-05-23 00:00	apache_httpd_sec	CVE-2013-1896: Sending a MERGE request against a URI handled by mod_dav_svn with the source href (sent as part of the request body as XML) pointing to a URI that is not configured for DAV will trigger a segfault.	-	CVE-2013-1896	vendor_advisory
2013-04-19 00:00	apache_httpd_sec	CVE-2013-1862: mod_rewrite does not filter terminal escape sequences from logs, which could make it easier for attackers to insert those sequences into terminal emulators containing vulnerabilities related to escape sequences.	-	CVE-2013-1862	vendor_advisory
2013-02-18 00:00	apache_httpd_sec	CVE-2012-4558: A XSS flaw affected the mod_proxy_balancer manager interface.	-	CVE-2012-4558	vendor_advisory
2013-02-18 00:00	apache_httpd_sec	CVE-2012-3499: Various XSS flaws due to unescaped hostnames and URIs HTML output in mod_info, mod_status, mod_imagemap, mod_ldap, and mod_proxy_ftp.	-	CVE-2012-3499	vendor_advisory
2012-08-16 00:00	apache_httpd_sec	CVE-2012-3502: The modules mod_proxy_ajp and mod_proxy_http did not always close the connection to the back end server when necessary as part of error handling. This could lead to an information disclosure due to a response mixup between users.	-	CVE-2012-3502	vendor_advisory
2012-06-13 00:00	apache_httpd_sec	CVE-2012-2687: Possible XSS for sites which use mod_negotiation and allow untrusted uploads to locations which have MultiViews enabled. Note: This issue is also known as CVE-2008-0455.	-	CVE-2008-0455 CVE-2012-2687	vendor_advisory
2012-03-02 00:00	apache_httpd_sec	CVE-2012-0883: Insecure handling of LD_LIBRARY_PATH was found that could lead to the current working directory to be searched for DSOs. This could allow a local user to execute code as root if an administrator runs apachectl from an untrusted directory.	-	CVE-2012-0883	vendor_advisory
2012-01-23 00:00	apache_httpd_sec	CVE-2012-0053: A flaw was found in the default error response for status code 400. This flaw could be used by an attacker to expose "httpOnly" cookies when no custom ErrorDocument is specified.	-	CVE-2012-0053	vendor_advisory
2012-01-22 00:00	apache_httpd_sec	CVE-2011-4317: An additional exposure was found when using mod_proxy in reverse proxy mode. In certain configurations using RewriteRule with proxy flag or ProxyPassMatch, a remote attacker could cause the reverse proxy to connect to an arbitrary server, possibly disclosing sensitive information from internal web servers not directly accessible to attacker.	-	CVE-2011-4317	vendor_advisory
2012-01-11 00:00	apache_httpd_sec	CVE-2012-0031: A flaw was found in the handling of the scoreboard. An unprivileged child process could cause the parent process to crash at shutdown rather than terminate cleanly.	-	CVE-2012-0031	vendor_advisory
2012-01-04 00:00	apache_httpd_sec	CVE-2012-4557: A flaw was found when mod_proxy_ajp connects to a backend server that takes too long to respond. Given a specific configuration, a remote attacker could send certain requests, putting a backend server into an error state until the retry timeout expired. This could lead to a temporary denial of service.	-	CVE-2012-4557	vendor_advisory
2011-11-28 00:00	apache_httpd_sec	CVE-2012-0021: A flaw was found in mod_log_config. If the '%{cookiename}C' log format string is in use, a remote attacker could send a specific cookie causing a crash. This crash would only be a denial of service if using a threaded MPM.	-	CVE-2012-0021	vendor_advisory
2011-11-02 00:00	apache_httpd_sec	CVE-2011-3607: An integer overflow flaw was found which, when the mod_setenvif module is enabled, could allow local users to gain privileges via a .htaccess file.	-	CVE-2011-3607	vendor_advisory
2011-10-05 00:00	apache_httpd_sec	CVE-2011-3368: An exposure was found when using mod_proxy in reverse proxy mode. In certain configurations using RewriteRule with proxy flag or ProxyPassMatch, a remote attacker could cause the reverse proxy to connect to an arbitrary server, possibly disclosing sensitive information from internal web servers not directly accessible to attacker. No update of 1.3 will be released. Patches will be published to https://archive.apache.org/dist/httpd/patches/apply_to_1.3.42/	-	CVE-2011-3368	vendor_advisory
2011-09-14 00:00	apache_httpd_sec	CVE-2011-3348: A flaw was found when mod_proxy_ajp is used together with mod_proxy_balancer. Given a specific configuration, a remote attacker could send certain malformed HTTP requests, putting a backend server into an error state until the retry timeout expired. This could lead to a temporary denial of service.	-	CVE-2011-3348	vendor_advisory
2011-08-20 00:00	apache_httpd_sec	A flaw was found in the way the Apache HTTP Server handled Range HTTP headers. A remote attacker could use this flaw to cause httpd to use an excessive amount of memory and CPU time via HTTP requests with a specially-crafted Range header. This could be used in a denial of service attack. Advisory: CVE-2011-3192.txt	-	CVE-2011-3192	vendor_advisory
2011-05-10 00:00	apache_httpd_sec	CVE-2011-0419: A flaw was found in the apr_fnmatch() function of the bundled APR library. Where mod_autoindex is enabled, and a directory indexed by mod_autoindex contained files with sufficiently long names, a remote attacker could send a carefully crafted request which would cause excessive CPU usage. This could be used in a denial of service attack. Workaround: Setting the 'IgnoreClient' option to the 'IndexOptions' directive disables processing of the client-supplied request query arguments, preventing this attack. Resolution: Update APR to release 1.4.5 (bundled with httpd 2.2.19) or release 0.9.20 (bundled with httpd 2.0.65)	-	CVE-2011-0419	vendor_advisory
2010-10-01 00:00	apache_httpd_sec	CVE-2010-1623: A flaw was found in the apr_brigade_split_line() function of the bundled APR-util library, used to process non-SSL requests. A remote attacker could send requests, carefully crafting the timing of individual bytes, which would slowly consume memory, potentially leading to a denial of service.	-	CVE-2010-1623	vendor_advisory
2010-07-25 00:00	apache_httpd_sec	CVE-2010-1452: A flaw was found in the handling of requests by mod_cache (2.2) and mod_dav (2.0 and 2.2). A malicious remote attacker could send a carefully crafted request and cause a httpd child process to crash. This crash would only be a denial of service if using the worker MPM. This issue is further mitigated as mod_dav is only affected by requests that are most likely to be authenticated, and mod_cache is only affected if the uncommon "CacheIgnoreURLSessionIdentifiers" directive, introduced in version 2.2.14, is used.	-	CVE-2010-1452	vendor_advisory
2010-07-23 00:00	apache_httpd_sec	CVE-2010-2791: An information disclosure flaw was found in mod_proxy_http in version 2.2.9 only, on Unix platforms. Under certain timeout conditions, the server could return a response intended for another user. Only those configurations which trigger the use of proxy worker pools are affected. There was no vulnerability on earlier versions, as proxy pools were not yet introduced. The simplest workaround is to globally configure: SetEnv proxy-nokeepalive 1	-	CVE-2010-2791	vendor_advisory
2010-06-09 00:00	apache_httpd_sec	CVE-2010-2068: An information disclosure flaw was found in mod_proxy_http in versions 2.2.9 through 2.2.15, 2.3.4-alpha and 2.3.5-alpha. Under certain timeout conditions, the server could return a response intended for another user. Only Windows, Netware and OS2 operating systems are affected. Only those configurations which trigger the use of proxy worker pools are affected. There was no vulnerability on earlier versions, as proxy pools were not yet introduced. The simplest workaround is to globally configure; SetEnv proxy-nokeepalive 1	-	CVE-2010-2068	vendor_advisory
2010-03-02 00:00	apache_httpd_sec	CVE-2010-0408: mod_proxy_ajp would return the wrong status code if it encountered an error, causing a backend server to be put into an error state until the retry timeout expired. A remote attacker could send malicious requests to trigger this issue, resulting in denial of service.	-	CVE-2010-0408	vendor_advisory
2010-03-02 00:00	apache_httpd_sec	CVE-2010-0425: A flaw was found with within mod_isapi which would attempt to unload the ISAPI dll when it encountered various error states. This could leave the callbacks in an undefined state and result in a segfault. On Windows platforms using mod_isapi, a remote attacker could send a malicious request to trigger this issue, and as win32 MPM runs only one process, this would result in a denial of service, and potentially allow arbitrary code execution.	-	CVE-2010-0425	vendor_advisory
2010-01-27 00:00	apache_httpd_sec	CVE-2010-0010: An incorrect conversion between numeric types flaw was found in the mod_proxy module which affects some 64-bit architecture systems. A malicious HTTP server to which requests are being proxied could use this flaw to trigger a heap buffer overflow in an httpd child process via a carefully crafted response.	-	CVE-2010-0010	vendor_advisory
2009-12-09 00:00	apache_httpd_sec	CVE-2010-0434: A flaw in the core subrequest process code was fixed, to always provide a shallow copy of the headers_in array to the subrequest, instead of a pointer to the parent request's array as it had for requests without request bodies. This meant all modules such as mod_headers which may manipulate the input headers for a subrequest would poison the parent request in two ways, one by modifying the parent request, which might not be intended, and second by leaving pointers to modified header fields in memory allocated to the subrequest scope, which could be freed before the main request processing was finished, resulting in a segfault or in revealing data from another request on threaded servers, such as the worker or winnt MPMs.	-	CVE-2010-0434	vendor_advisory