NX Server for Linux Vulnerable SUID script in (nomachine)

2011.10.05

Credit: Research@NGSSecure

Risk: High

Local: Yes

Remote: No

CVE: CVE-2011-3977

CWE: NVD-CWE-noinfo

CVSS Base Score: 7.2/10

Impact Subscore: 10/10

Exploitability Subscore: 3.9/10

Exploit range: Local

Attack complexity: Low

Authentication: No required

Confidentiality impact: Complete

Integrity impact: Complete

Availability impact: Complete

Vulnerable SUID script in (nomachine) NX Server for Linux 3.5.0-4 (Advanced and Enterprise across redhat and debian hosts)
21 September 2011
NGS Secure has discovered a High risk vulnerability in (nomachine) NX Server for Linux 3.5.0-4 (Advanced and Enterprise across redhat and debian hosts).
Impact: Arbitrary files can be read with root privileges
The fix was rated critical by the vendor and short term patch was to remove the offending script.
http://www.nomachine.com/tr/view.php?id=TR08I02575
NGS Secure is going to withhold details of this flaw for three months. This three month window will allow users the time needed to apply the patch before the details are released to the general public. This reflects the NGS Secure approach to responsible disclosure.
NGS Secure Research
http://www.ngssecure.com

References:

http://xforce.iss.net/xforce/xfdb/69974

http://www.securityfocus.com/bid/49720

http://www.securityfocus.com/archive/1/archive/1/519730/100/0/threaded

http://www.nomachine.com/tr/view.php?id=TR08I02575

See this note in RAW Version

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NX Server for Linux Vulnerable SUID script in (nomachine)

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