CVE-2008-3825 Privilege escalation in n/a
Local attackers can escalate privileges via pam_krb5 when existing_ticket is enabled by manipulating the KRB5CCNAME environment variable.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2008-3825?
CVE-2008-3825 is a medium-severity vulnerability in Redhat Enterprise Linux, published on 3 Oct 2008. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
pam_krb5 2.2.14 in Red Hat Enterprise Linux (RHEL) 5 and earlier, when the existing_ticket option is enabled, uses incorrect privileges when reading a Kerberos credential cache, which allows local users to gain privileges by setting the KRB5CCNAME environment variable to an arbitrary cache filename and running the (1) su or (2) sudo program. NOTE: there may be a related vector involving sshd that has limited relevance.
Weakness: CWE-264
Which versions are affected by CVE-2008-3825?
It affects 2 products.
Linux distribution packages (4)
pam_krb5 Red Hat:enterprise_linux:5::client | All versions | 0:2.2.14-1.el5_2.1 |
pam_krb5-debuginfo Red Hat:enterprise_linux:5::client | All versions | 0:2.2.14-1.el5_2.1 |
pam_krb5 Red Hat:enterprise_linux:5::server | All versions | 0:2.2.14-1.el5_2.1 |
pam_krb5-debuginfo Red Hat:enterprise_linux:5::server | All versions | 0:2.2.14-1.el5_2.1 |
Products include Redhat Enterprise Linux, Redhat Enterprise Linux Desktop.
How do I fix CVE-2008-3825?
Apply the vendor's patch.
Is CVE-2008-3825 being exploited?
There is no known exploitation of CVE-2008-3825 in the wild and no public exploit code.
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Sources
Also known as GHSA-7mvj-f88g-7mgj, RHSA-2008:0907.