6474 : FastCGI mod_fastcgi FastCgiSuexec Vhosts Privilege Escalation
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Info

Last Modified

5 months ago

Percent Complete

100%

Disclosure

Jan 19, 2003

Discovery

Unknown

Dates

Exploit

Jan 19, 2003

Solution

Unknown

Description

FastCGI mod_fastcgi contains a flaw that may allow privilege escalation. The issue occurs when the FastCgiWrapper (FastCgiSuexec) is used in conjunction with servers on a virtual host (vhost) configuration. In some situations, mod_fastcgi would fail to use the wrapper (suexec) due to it thinking it had the required privileges. As a result, some applications were receiving the privileges of the server directly (often 'root') instead of the required privileges via the wrapper (limited). This may allow some users to use custom CGI's that would run with full root privileges causing a loss of integrity.

Classification

Location: Local Access Required, Remote/Network Access Required
Attack Type: Misconfiguration
Impact: Loss of Integrity
Exploit: Exploit Available
Disclosure: OSVDB Verified
OSVDB: Web Related

Solution

Upgrade to version 2.4.0 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

FastCGI
Watch-list
mod_fastcgi
Watch-list
2.2.10
2.2.12
2.2.4
2.2.6
2.2.8

References

Credit

  • Michael Richards - michaelBrand New Doo Doofastmail.ca -

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