CVE-2000-0250: Weak Encryption
The crypt function in QNX uses weak encryption, which allows local users to decrypt passwords.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
Disable use of the QNX crypt() function for storing passwords. Update systems to use a modern, stronger password-hashing mechanism in place of crypt().
QNX crypt() function enabled = false - Compensating control
Restrict and harden local access to systems running QNX: limit local user accounts to trusted administrators, enforce least privilege, disable unnecessary local accounts, and increase monitoring/auditing of local authentication and access.
- Operational
Rotate any passwords, stored credentials, or keys that were protected using the QNX crypt() function, as they may have been decrypted by local users. Re-issue credentials after replacement of the weak hashing.
Event History
Frequently Asked Questions
What is the severity of CVE-2000-0250?
CVE-2000-0250 is considered a high severity vulnerability due to weak encryption allowing local users to decrypt passwords.
How do I fix CVE-2000-0250?
To mitigate CVE-2000-0250, it is recommended to upgrade to a version of QNX that addresses this encryption weakness.
Who is affected by CVE-2000-0250?
Local users of QNX version 4.25a are affected by CVE-2000-0250 due to its use of weak encryption in the crypt function.
What impact does CVE-2000-0250 have?
The impact of CVE-2000-0250 allows unauthorized local users to decrypt user passwords, potentially compromising user accounts.
Is there a workaround for CVE-2000-0250?
There are no known workarounds for CVE-2000-0250, and updating the software is the primary method of remediation.