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Secunia Advisory SA11585

NetBSD Systrace Privilege Escalation Vulnerability
Secunia Advisory SA11585
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Release Date 2004-05-11
Last Update 2004-05-12
   
Popularity 7,149 views
Comments 0 comments

Criticality level Less criticalLess critical
Impact Privilege escalation
Where Local system
Authentication level Available in Customer Area
   
Report reliability Available in Customer Area
Solution Status Vendor Patch
   
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
   
Software:
systrace (port for FreeBSD)
Secunia CVSS Score Available in Customer Area
CVE Reference(s) No CVE references.
  

Description

Stefan Esser has reported a vulnerability in the NetBSD -current implementation of the systrace utility and in a FreeBSD port by Vladimir Kotal, which can be exploited by malicious, local users to gain escalated privileges.

The vulnerability is caused due to a missing superuser check within the exit code. This can reportedly be exploited in combination with certain behaviour in the kernel's "syscall_fancy()" function to gain root privileges.


Solution
NetBSD has reportedly fixed the vulnerability in CVS.

Provided and/or discovered by
Stefan Esser

Changelog
Further details available in Customer Area

Original Advisory
http://security.e-matters.de/advisories/042004.html

Deep Links
Links available in Customer Area


Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: NetBSD Systrace Privilege Escalation Vulnerability
 
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