GNU GRand Unified Bootloader (GRUB) 2 1.97 only compares the submitted portion of a password with the actual password, which makes it easier for physically proximate attackers to conduct brute force attacks and bypass authentication by submitting a password whose length is 1.
Weakness
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Grub_2 | Gnu | 1.97 (including) | 1.97 (including) |
| Grub2 | Ubuntu | devel | * |
| Grub2 | Ubuntu | karmic | * |
| Grub2 | Ubuntu | upstream | * |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/114.html
- https://cwe.mitre.org/data/definitions/115.html
- https://cwe.mitre.org/data/definitions/151.html
- https://cwe.mitre.org/data/definitions/194.html
- https://cwe.mitre.org/data/definitions/22.html
- https://cwe.mitre.org/data/definitions/57.html
- https://cwe.mitre.org/data/definitions/593.html
- https://cwe.mitre.org/data/definitions/633.html
- https://cwe.mitre.org/data/definitions/650.html
- https://cwe.mitre.org/data/definitions/94.html
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=555195
- http://www.openwall.com/lists/oss-security/2024/01/15/3
- http://www.securityfocus.com/bid/36968
- https://exchange.xforce.ibmcloud.com/vulnerabilities/54210
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=555195
- http://www.openwall.com/lists/oss-security/2024/01/15/3
- http://www.securityfocus.com/bid/36968
- https://exchange.xforce.ibmcloud.com/vulnerabilities/54210