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Secunia Security Advisory 50272

Secunia Security Advisory 50272
Posted Aug 16, 2012
Authored by Secunia | Site secunia.com

Secunia Security Advisory - Debian has issued an update for rssh. This fixes a vulnerability, which can be exploited by malicious users to bypass certain security restrictions.

tags | advisory
systems | linux, debian
MD5 | e13905546aa4a4da7806b9f63cf58535

Secunia Security Advisory 50272

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TITLE:
Debian update for rssh

SECUNIA ADVISORY ID:
SA50272

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/50272/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=50272

RELEASE DATE:
2012-08-16

DISCUSS ADVISORY:
http://secunia.com/advisories/50272/#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/50272/

ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=50272

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:
Debian has issued an update for rssh. This fixes a vulnerability,
which can be exploited by malicious users to bypass certain security
restrictions.

The vulnerability is caused due to an error when handling environment
variables and can be exploited to bypass the application restrictions
and e.g. gain shell access.

Successful exploitation requires that the sshd AcceptEnv
configuration option is enabled.

SOLUTION:
Apply updated packages via the apt-get package manager.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Henrik Erkkonen.

ORIGINAL ADVISORY:
DSA-2530-1:
http://www.debian.org/security/2012/dsa-2530

pizzashack.org:
http://archives.neohapsis.com/archives/bugtraq/2012-05/0036.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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

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.

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

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

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

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