[SA41180] Novell NetWare OpenSSH Buffer Overflow Vulnerability

Wednesday, September 01 2010 @ 07:50 AM CDT

Contributed by: kkbass

SECUNIA ADVISORY ID:
SA41180

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/41180/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=41180

RELEASE DATE:
2010-09-01

DISCUSS ADVISORY:
http://secunia.com/advisories/41180/#comments

DESCRIPTION:
A vulnerability has been reported in Novell NetWare, which can be
exploited by malicious users to potentially compromise a vulnerable
system.

The vulnerability is caused due to a boundary error in SSHD.NLM and
SFTP-SVR.NLM when handling user sessions and can be exploited to
cause a stack-based buffer overflow via an overly long (greater than
512 characters) absolute path string.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is reported in NetWare 6.5.

SOLUTION:
Restrict access to OpenSSH to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Francis Provencher, Protek Research Lab via ZDI.

ORIGINAL ADVISORY:
Novell:
http://www.novell.com/support/viewContent.do?externalId=7006756

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:
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