Vigil@nce - Apache https: data reading via mod_proxy_http
June 2010 by Vigil@nce
This bulletin was written by Vigil@nce : http://vigilance.fr/
SYNTHESIS OF THE VULNERABILITY
When mod_proxy_http is used on Netware, OS2 or Windows, an
attacker can obtain documents belonging to the session of another
user.
Severity: 2/4
Creation date: 14/06/2010
DESCRIPTION OF THE VULNERABILITY
Since Apache httpd version 2.2.9, the mod_proxy_http module
supports "proxy worker pools". They use HTTP Keep-Alive
connections to the server, which are kept open in order to deliver
several documents.
On Netware, OS2 and Windows, the timeout state of HTTP Keep-Alive
connections is not saved, and data belonging to another connection
can be returned to the user.
When mod_proxy_http is used on Netware, OS2 or Windows, an
attacker can therefore obtain documents belonging to the session
of another user. To cause this error, the attacker for example has
to slow down the server, in order to generate a timeout.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
http://vigilance.fr/vulnerability/Apache-https-data-reading-via-mod-proxy-http-9705