TITLE:
Lynx "lynxcgi:" URI Handler Arbitrary Command Execution

SECUNIA ADVISORY ID:
SA17372

VERIFY ADVISORY:
http://secunia.com/advisories/17372/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Lynx 2.x
http://secunia.com/product/5883/

DESCRIPTION:
vade79 has reported a vulnerability in Lynx, which can be exploited
by malicious people to compromise a user's system.

The vulnerability is caused due to unspecified configuration and
input validation errors in the handling of certain URI handlers which
execute local programs. This can be exploited to execute arbitrary
commands via the "lynxcgi", "lynxexec", and "lynxprog" URI handlers.

The vulnerability has been reported in version 2.8.5. Other versions
may also be affected.

SOLUTION:
Update to version 2.8.5rel.5.
ftp://lynx.isc.org/lynx2.8.5/

PROVIDED AND/OR DISCOVERED BY:
vade79

ORIGINAL ADVISORY:
iDEFENSE:
http://www.idefense.com/application/poi/display?id=338&type=vulnerabilities

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

Unsubscribe: Secunia Security Advisories
http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org

----------------------------------------------------------------------