9775 : Webmin/Usermin Installation .webmin Symlink Local Privilege Escalation
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Disclosure Date


Usermin contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is triggered when the /tmp/.webmin directory has been created prior to installation. It is possible for a malicious user to create a symlink to any other file on the system, which would be overwritten when Usermin writes to the link filename, resulting in a loss of integrity.


Location: Local Access Required
Attack Type: Input Manipulation, Race Condition
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Public
Disclosure: Vendor Verified


Upgrade to version 1.090, 1.160 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.


Jamie Cameron


Tools & Filters

14760 15381


Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 2.1
Source: nvd.nist.gov | Generated: 2003-12-31 | Disagree?

Access_vector_0 Access_complexity_2 Authentication_2 Confidentiality_impact_0 Integrity_impact_1 Availability_impact_0


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