Signature Detail

APP: Oracle HTTP Server Proxy Bypass

This signature detects attempts to exploit a known vulnerability in the way Oracle HTTP Server (OHS) applies access control policy to local resources. All remote HTTP requests proxied by the Oracle Web Cache can bypass the OHS access restriction. Attackers can remotely obtain protected contents.

Extended Description

Oracle HTTP Server(OHS) of Oracle Application Server is prone to an access restriction bypass vulnerability. It is possible to configure a list of forbidden URIs in OHS. This is accomplished using 'mod_access'. A URI that is listed is not supposed to be accessible to certain clients, depending on the configuration. However, reports indicate that the Oracle Webcache client may be used to access URIs regardless of the restrictions outlined in OHS 'mod_access'.

Affected Products

• Oracle Oracle10g Application Server 10.1.0 .0.2
• Oracle Oracle10g Application Server 10.1.0 .0.3
• Oracle Oracle10g Application Server 10.1.0 .0.3.1
• Oracle Oracle10g Application Server 10.1.2
• Oracle Oracle10g Application Server 9.0.4 .0
• Oracle Oracle10g Application Server 9.0.4 .1
• Oracle Oracle9i Application Server 1.0.2
• Oracle Oracle9i Application Server 1.0.2 .1s
• Oracle Oracle9i Application Server 1.0.2 .2
• Oracle Oracle9i Application Server 1.0.2 .2.2
• Oracle Oracle9i Application Server 9.0.2
• Oracle Oracle9i Application Server 9.0.2 .0.0
• Oracle Oracle9i Application Server 9.0.2 .0.1
• Oracle Oracle9i Application Server 9.0.2 .1
• Oracle Oracle9i Application Server 9.0.2 .2
• Oracle Oracle9i Application Server 9.0.2 .3
• Oracle Oracle9i Application Server 9.0.3
• Oracle Oracle9i Application Server 9.0.3 .1
• Oracle Oracle9i Application Server 9.2.0 .0.6
• Oracle Oracle9i Application Server
• Oracle Oracle HTTP Server 8.1.7
• Oracle Oracle HTTP Server 9.0.1
• Oracle Oracle HTTP Server 9.2.0 .0

References

• BugTraq: 13418
• CVE: CVE-2005-1383
• URL: http://www.ipolicynetworks.com/technology/files/Oracle_HTTP_Server_mod_access_Restriction_Bypass.html
• URL: http://www.sans.org/newsletters/risk/display.php?v=4&i=15