271 matches found
Apache Httpd < 2.0.42 : mod_dav crash
A flaw was found in handling of versioning hooks in moddav. An attacker could send a carefully crafted request in such a way to cause the child process handling the connection to crash. This issue will only result in a denial of service where a threaded process model is in use...
Apache Httpd < 2.4.4 : XSS due to unescaped hostnames
Various XSS flaws due to unescaped hostnames and URIs HTML output in modinfo, modstatus, modimagemap, modldap, and modproxyftp...
Apache Httpd < 2.0.64 : APR apr_palloc heap overflow
A flaw in aprpalloc in the bundled copy of APR could cause heap overflows in programs that try to aprpalloc a user controlled size. The Apache HTTP Server itself does not pass unsanitized user-provided sizes to this function, so it could only be triggered through some other application which uses...
Apache Httpd < 2.2.10 : mod_proxy_ftp globbing XSS
A flaw was found in the handling of wildcards in the path of a FTP URL with modproxyftp. If modproxyftp is enabled to support FTP-over-HTTP, requests containing globbing characters could lead to cross-site scripting XSS attacks...
Apache Httpd < 2.2.6 : Signals to arbitrary processes
The Apache HTTP server did not verify that a process was an Apache child process before sending it signals. A local attacker with the ability to run scripts on the HTTP server could manipulate the scoreboard and cause arbitrary processes to be terminated which could lead to a denial of service...
Apache Httpd < 1.3.22 : Requests can cause directory listing to be displayed
A vulnerability was found in the Win32 port of Apache 1.3.20. A client submitting a very long URI could cause a directory listing to be returned rather than the default index page...
Apache Httpd < 2.4.34 : mod_md, DoS via Coredumps on specially crafted requests
By specially crafting HTTP requests, the modmd challenge handler would dereference a NULL pointer and cause the child process to segfault. This could be used to DoS the server...
Apache Httpd < 2.4.6 : mod_dav crash
Sending a MERGE request against a URI handled by moddavsvn 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...
Apache Httpd < 2.0.64 : mod_cache and mod_dav DoS
A flaw was found in the handling of requests by modcache 2.2 and moddav 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 a...
Apache Httpd < 2.0.64 : mod_isapi module unload flaw
A flaw was found with within modisapi 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 modisapi, a remote attacker could send a malicious request to trigg...
Apache Httpd < 2.0.64 : mod_deflate DoS
A denial of service flaw was found in the moddeflate module. This module continued to compress large files until compression was complete, even if the network connection that requested the content was closed before compression completed. This would cause moddeflate to consume large amounts of CPU...
Apache Httpd < 2.0.51 : SSL connection infinite loop
An issue was discovered in the modssl module in Apache 2.0. A remote attacker who forces an SSL connection to be aborted in a particular state may cause an Apache child process to enter an infinite loop, consuming CPU resources...
Apache Httpd < 2.0.44 : Apache can serve unexpected files
On Windows platforms Apache could be forced to serve unexpected files by appending illegal characters such as '' to the request URL...
Apache Httpd < 1.3.24 : Win32 Apache Remote command execution
Apache for Win32 before 1.3.24 and 2.0.34-beta allows remote attackers to execute arbitrary commands via parameters passed to batch file CGI scripts...
Apache Httpd < 2.0.53 : mod_disk_cache stores sensitive headers
The experimental moddiskcache module stored client authentication credentials for cached objects such as proxy authentication credentials and Basic Authentication passwords on disk...
Apache Httpd < 1.3.29 : Local configuration regular expression overflow
By using a regular expression with more than 9 captures a buffer overflow can occur in modalias or modrewrite. To exploit this an attacker would need to be able to create a carefully crafted configuration file .htaccess or httpd.conf...
Apache Httpd < 2.0.40 : Path vulnerability
Certain URIs would bypass security and allow users to invoke or access any file depending on the system configuration. Affects Windows, OS2, Netware and Cygwin platforms only...
Apache Httpd < 2.0.65 : mod_rewrite log escape filtering
modrewrite 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...
Apache Httpd < 2.0.65 : apr_fnmatch flaw leads to mod_autoindex remote DoS
A flaw was found in the aprfnmatch function of the bundled APR library. Where modautoindex is enabled, and a directory indexed by modautoindex contained files with sufficiently long names, a remote attacker could send a carefully crafted request which would cause excessive CPU usage. This could b...
Apache Httpd < 2.2.6 : mod_proxy crash
A flaw was found in the Apache HTTP Server modproxy module. On sites where a reverse proxy is configured, a remote attacker could send a carefully crafted request that would cause the Apache child process handling that request to crash. On sites where a forward proxy is configured, an attacker...
Apache Httpd < 1.3.37 : mod_rewrite off-by-one error
An off-by-one flaw exists in the Rewrite module, modrewrite. Depending on the manner in which Apache httpd was compiled, this software defect may result in a vulnerability which, in combination with certain types of Rewrite rules in the web server configuration files, could be triggered remotely...
Apache Httpd < 2.0.48 : CGI output information leak
A bug in modcgid mishandling of CGI redirect paths can result in CGI output going to the wrong client when a threaded MPM is used...
Apache Httpd < 2.0.65 : error responses can expose cookies
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...
Apache Httpd < 2.0.65 : scoreboard parent DoS
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...
Apache Httpd < 2.0.46 : Filtered escape sequences
Apache did not filter terminal escape sequences from its access logs, which could make it easier for attackers to insert those sequences into terminal emulators containing vulnerabilities related to escape sequences...
Apache Httpd < 2.0.43 : CGI scripts source revealed using WebDAV
In Apache 2.0.42 only, for a location where both WebDAV and CGI were enabled, a POST request to a CGI script would reveal the CGI source to a remote user...
Apache Httpd < 1.3.39 : mod_status cross-site scripting
A flaw was found in the modstatus module. On sites where the server-status page is publicly accessible and ExtendedStatus is enabled this could lead to a cross-site scripting attack. Note that the server-status page is not enabled by default and it is best practice to not make this publicly...
Apache Httpd < 1.3.28 : RotateLogs DoS
The rotatelogs support program on Win32 and OS/2 would quit logging and exit if it received special control characters such as 0x1A...
Apache Httpd < 2.0.36 : Warning messages could be displayed to users
In some cases warning messages could get returned to end users in addition to being recorded in the error log. This could reveal the path to a CGI script for example, a minor security exposure...
Apache Httpd < 2.0.64 : mod_proxy_ftp globbing XSS
A flaw was found in the handling of wildcards in the path of a FTP URL with modproxyftp. If modproxyftp is enabled to support FTP-over-HTTP, requests containing globbing characters could lead to cross-site scripting XSS attacks...
Apache Httpd < 1.3.41 : mod_status XSS
A flaw was found in the modstatus module. On sites where modstatus is enabled and the status pages were publicly accessible, a cross-site scripting attack is possible. Note that the server-status page is not enabled by default and it is best practice to not make this publicly available...
Apache Httpd < 2.0.61 : mod_cache proxy DoS
A bug was found in the modcache module. On sites where caching is enabled, a remote attacker could send a carefully crafted request that would cause the Apache child process handling that request to crash. This could lead to a denial of service if using a threaded Multi-Processing Module...
Apache Httpd < 1.3.14 : Rewrite rules that include references allow access to any file
The Rewrite module, modrewrite, can allow access to any file on the web server. The vulnerability occurs only with certain specific cases of using regular expression references in RewriteRule directives: If the destination of a RewriteRule contains regular expression references then an attacker...
Apache Httpd < 2.0.61 : mod_status cross-site scripting
A flaw was found in the modstatus module. On sites where the server-status page is publicly accessible and ExtendedStatus is enabled this could lead to a cross-site scripting attack. Note that the server-status page is not enabled by default and it is best practice to not make this publicly...
Apache Httpd < 2.0.55 : Byterange filter DoS
A flaw in the byterange filter would cause some responses to be buffered into memory. If a server has a dynamic resource such as a CGI script or PHP script which generates a large amount of data, an attacker could send carefully crafted requests in order to consume resources, potentially leading ...
Apache Httpd < 1.3.14 : Mass virtual hosting can display CGI source
A security problem for users of the mass virtual hosting module, modvhostalias, causes the source to a CGI to be sent if the cgi-bin directory is under the document root. However, it is not normal to have your cgi-bin directory under a document root...
Apache Httpd < 1.3.11 : Mass virtual hosting security issue
A security problem can occur for sites using mass name-based virtual hosting using the new modvhostalias module or with special modrewrite rules...
Apache Httpd < 2.4.12 : mod_proxy_fcgi out-of-bounds memory read
An out-of-bounds memory read was found in modproxyfcgi. 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...
Apache Httpd < 2.0.65 : Range header remote DoS
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...
Apache Httpd < 2.0.48 : Local configuration regular expression overflow
By using a regular expression with more than 9 captures a buffer overflow can occur in modalias or modrewrite. To exploit this an attacker would need to be able to create a carefully crafted configuration file .htaccess or httpd.conf...
Apache Httpd < 2.0.47 : Remote DoS with multiple Listen directives
In a server with multiple listening sockets a certain error returned by accept on a rarely access port can cause a temporary denial of service, due to a bug in the prefork MPM...
Apache Httpd < 2.0.64 : expat DoS
A buffer over-read flaw was found in the bundled expat library. An attacker who is able to get Apache to parse an untrused XML document for example through moddav may be able to cause a crash. This crash would only be a denial of service if using the worker MPM...
Apache Httpd < 2.0.58 : mod_ssl access control DoS
A NULL pointer dereference flaw in modssl was discovered affecting server configurations where an SSL virtual host is configured with access control and a custom 400 error document. A remote attacker could send a carefully crafted request to trigger this issue which would lead to a crash. This...
Apache Httpd < 2.0.55 : HTTP Request Spoofing
A flaw occured when using the Apache server as a HTTP proxy. A remote attacker could send a HTTP request with both a "Transfer-Encoding: chunked" header and a Content-Length header, causing Apache to incorrectly handle and forward the body of the request in a way that causes the receiving server ...
Apache Httpd < 2.0.53 : Memory consumption DoS
An issue was discovered where the field length limit was not enforced for certain malicious requests. This could allow a remote attacker who is able to send large amounts of data to a server the ability to cause Apache children to consume proportional amounts of memory, leading to a denial of...
Apache Httpd < 2.0.51 : WebDAV remote crash
An issue was discovered in the moddav module which could be triggered for a location where WebDAV authoring access has been configured. A malicious remote client which is authorized to use the LOCK method could force an httpd child process to crash by sending a particular sequence of LOCK request...
Apache Httpd < 2.0.51 : Environment variable expansion flaw
A buffer overflow was found in the expansion of environment variables during configuration file parsing. This issue could allow a local user to gain the privileges of a httpd child if a server can be forced to parse a carefully crafted .htaccess file written by a local user...
Apache Httpd < 1.3.31 : listening socket starvation
A starvation issue on listening sockets occurs when a short-lived connection on a rarely-accessed listening socket will cause a child to hold the accept mutex and block out new connections until another connection arrives on that rarely-accessed listening socket. This issue is known to affect som...
Apache Httpd < 2.4.4 : XSS in mod_proxy_balancer
A XSS flaw affected the modproxybalancer manager interface...
Apache Httpd < 2.2.12 : mod_proxy_ajp information disclosure
An information disclosure flaw was found in modproxyajp in version 2.2.11 only. In certain situations, if a user sent a carefully crafted HTTP request, the server could return a response intended for another user...