OSVDB ID: 23199 Title: TENEX Page Fault Race Condition Password Prediction Weakness |
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Description |
TENEX contains a flaw that may allow a local attacker to more trivially guess user passwords. By carefully examining the virtual memory paging timing for differential timing for page faults, it is possible to determine if a specific character matched a portion of the password. By performing this timing attack for each character of a password, an attacker could effectively brute force a relatively strong password in a matter of minutes, instead of having to exhaust a majority of the possible password space. |
Classification |
Location:
Local Access Required
Attack Type: Cryptographic Impact: Loss of Integrity Exploit: Exploit Public Disclosure: OSVDB Verified |
Solution |
The vendor has discontinued this product and therefore has no patch or upgrade that mitigates this problem. It is recommended that an alternate software package be used in its place. |
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Credit |
Unknown or Incomplete |