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TITLE:
Conky "/tmp/.cesf" Insecure Temporary File Security Issue

SECUNIA ADVISORY ID:
SA43225

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43225/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43225

RELEASE DATE:
2011-02-08

DISCUSS ADVISORY:
http://secunia.com/advisories/43225/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/43225/

ONLY AVAILABLE IN CUSTOMER AREA:
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https://ca.secunia.com/?page=viewadvisory&vuln_id=43225

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A security issue has been reported in Conky, which can be exploited
by malicious, local users to perform certain actions with escalated
privileges.

The security issue is caused due to Conky's "eve" module using the
"/tmp/.cesf" file in an insecure manner, which can be exploited to
e.g. overwrite arbitrary files with the privileges of the user
running Conky.

Successful exploitation requires that the "eve" module is compiled
and configured.

The security issue is reported in version 1.8.1. Other versions may
also be affected.

SOLUTION:
Restrict access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Reported in an Ubuntu bug by segooon.

ORIGINAL ADVISORY:
Ubuntu Bug #607309:
https://bugs.launchpad.net/ubuntu/+source/conky/+bug/607309

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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

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Please Note:
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use those supplied by the vendor.

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