2107 : Apache HTTP Server mod_ssl Host: Header XSS
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Info

Last Modified

about 1 year ago

Percent Complete

90%

Disclosure

Oct 22, 2002

Discovery

Oct 22, 2002

Dates

Exploit

Oct 22, 2002

Solution

Unknown

Keywords

No Keywords

Description

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 Required
Attack Type: Input Manipulation
Impact: Loss of Confidentiality, Loss of Integrity
Exploit: Exploit Available
Disclosure: OSVDB 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.

Products

Apache Software Foundation
Watch-list
mod_ssl
Watch-list
2.4.10
2.8.9

References

Tools & Filters

Nessus

11622 12332 13972 15018

Manual Testing Notes

Credit

Unknown or Incomplete

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