var-200412-0290
Vulnerability from variot

Off-by-one error in passwd 0.68 and earlier, when using the --stdin option, causes passwd to use the first 78 characters of a password instead of the first 79, which results in a small reduction of the search space required for brute force attacks. Two potential security issues reportedly affect the implementation of passwd included with Mandrake Linux, according to Mandrake advisory MDKSA-2004:045. According to the report, passwords supplied to passwd via stdin are incorrectly one character shorter than they should be. It is not known whether this behavior occurs at the interactive prompt or if the implementation allows for passwords to be "piped" to passwd through stdin. This may or may not have security implications as the user's password will not be stored correctly and the user will not be able to login. It is conceivable that this could result in a less secure password. The second issue reported by Mandrake is that PAM may not be initialized correctly and "safe and proper" operation may not be ensured. Further technical details are not known. Mandrake Linux is an open source operating system

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Taxonomy of the tags.


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.