91303 – net-proxy/oops: auth() Format String Flaw

Bug 91303 - net-proxy/oops: auth() Format String Flaw

Summary: net-proxy/oops: auth() Format String Flaw

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Security
Classification:	Unclassified
Component:	Vulnerabilities (show other bugs)
Hardware:	All All

Importance:	High normal (vote)
Assignee:	Gentoo Security

URL:	http://securitytracker.com/alerts/200...
Whiteboard:	B1? [glsa] jaervosz
Keywords:

Depends on:
Blocks:

Reported:	2005-05-03 06:35 UTC by Jean-François Brunette (RETIRED)
Modified:	2005-05-05 15:36 UTC (History)
CC List:	1 user (show)

See Also:
Package list:
Runtime testing required:	---

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Description Jean-François Brunette (RETIRED) gentoo-dev

2005-05-03 06:35:51 UTC

CVE Reference:  CAN-2005-1121   (Links to External Site)  
 
Version(s): 1.5.23 and prior versions 
 
Description:  A format string vulnerability was reported in Oops! A remote user may be able to execute arbitrary code. 

The passwd_mysql/passwd_pgsql module auth() function contains a call to the my_xlog() function that does not include a format string specifier. A remote user can supply a specially crafted HTTP request to trigger the vulnerability and cause the service to crash or execute arbitrary code.

A demonstration exploit request is provided:

GET http://%s%s%s%s%s%s%s%s/ HTTP/1.0
Host: ghc.ru
Proxy-Authorization: Basic Z2hjOnJzdA==

The flaw resides in 'passwd_sql.c'.

Edisan from RST/GHC reported this vulnerability. 
 
Impact:  A remote user can cause the service to crash or execute arbitrary code.
 
Solution:  A patch is available at:

http://zipper.paco.net/~igor/oops/diff_from_1.5.23.patch.gz

Comment 1 Sune Kloppenborg Jeppesen (RETIRED) gentoo-dev

2005-05-03 13:26:25 UTC

net-proxy please advise.

Comment 2 Alin Năstac (RETIRED) gentoo-dev

2005-05-03 15:36:10 UTC

bug confirmed.
I've bumped version to the current 1.5.24 pre-release and marked as stable on x86.

Comment 3 Gustavo Zacarias (RETIRED) gentoo-dev

2005-05-04 06:36:52 UTC

sparc done.

Comment 4 Luke Macken (RETIRED) gentoo-dev

2005-05-05 15:36:16 UTC

GLSA 200505-02, thanks everyone!