CVE-2007-3149
First published: Mon Jun 11 2007(Updated: )
sudo, when linked with MIT Kerberos 5 (krb5), does not properly check whether a user can currently authenticate to Kerberos, which allows local users to gain privileges, in a manner unintended by the sudo security model, via certain KRB5_ environment variable settings. NOTE: another researcher disputes this vulnerability, stating that the attacker must be "a user, who can already log into your system, and can already use sudo."
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Todd Miller Sudo | =1.6.8_p12 | |
| Kerberos 5 (libkrb5) |
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Reference Links
- http://www.sudo.ws/cgi-bin/cvsweb/sudo/auth/kerb5.c
- http://www.securityfocus.com/bid/24368
- http://secunia.com/advisories/26540
- http://www.securityfocus.com/archive/1/470774/100/0/threaded
- http://www.securityfocus.com/archive/1/470752/100/0/threaded
- http://www.securityfocus.com/archive/1/470739/100/0/threaded
Frequently Asked Questions
What is the severity of CVE-2007-3149?
CVE-2007-3149 has been classified with a medium severity as it allows local users to gain elevated privileges unintentionally.
How do I fix CVE-2007-3149?
To fix CVE-2007-3149, ensure that you update sudo to a version later than 1.6.8_p12 that addresses this vulnerability.
Who is affected by CVE-2007-3149?
CVE-2007-3149 affects systems using sudo version 1.6.8_p12 linked with MIT Kerberos 5.
What is the impact of CVE-2007-3149?
The impact of CVE-2007-3149 is that it may allow local users to exploit certain environment variable settings to gain higher privileges.
Is CVE-2007-3149 a local or remote vulnerability?
CVE-2007-3149 is a local vulnerability that requires local user access to exploit.
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