Apache mod_ssl contains a flaw that allows a remote Cross Site Scripting attack. This flaw exists because the application does not validate server signature data upon submission to the SSI error page. This could allow a user to send a specially crafted request that would execute the embedded script within the security context of the hosting site.
Classification
Location:
Remote / Network Access
Attack Type:
Input Manipulation
Impact:
Loss of Confidentiality,
Loss of Integrity
Solution:
Upgrade
Exploit:
Exploit Public
Disclosure:
OSVDB Verified,
Vendor Verified
OSVDB:
Web Related
Technical
The mod_ssl authentication module is vulnerable to cross-site scripting, caused by improper filtering of server signature data. A remote attacker could create a specially-crafted URL request that would cause a malicious HTTP "Host:" header which would be executed within the security context of the hosting site in the victim's browser. The existance of this vulnerability is limited to configurations with both the 'UseCanonicalName' option turned off and wildcard DNS enabled.
Solution
Upgrade to version 2.8.10 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
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This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.
