FreeBSD OPIE opiepasswd(1) unauthorized privilege escalation
| bsd-opie-unauthorized-privileges (25397) |  High Risk |
Description:
OPIE could allow a local attacker to gain elevated privileges on the system. In certain cases when a user calls opiepasswd to set up authentication for OPIE, the getlogin(2) command could return root privileges even if the user is unprivileged. This could be exploited by local unprivileged attackers to gain root privileges on the system.
Consequences:
Gain Privileges
Remedy:
Refer to FreeBSD Security Advisory FreeBSD-SA-06:12.opie for patch, upgrade, or suggested workaround information. See References.
References:
- FreeBSD Security Advisory FreeBSD-SA-06:12.opie: OPIE arbitrary password change .
- BID-17194: OPIE Arbitrary Account Password Change Vulnerability
- CVE-2006-1283: opiepasswd in One-Time Passwords in Everything (OPIE) in FreeBSD 4.10-RELEASE-p22 through 6.1-STABLE before 20060322 uses the getlogin function to determine the invoking user account, which might allow local users to configure OPIE access to the root account and possibly gain root privileges if a root shell is permitted by the configuration of the wheel group or sshd.
- OSVDB ID: 24067: FreeBSD OPIE opiepasswd getlogin(2) Privilege Escalation
- SA19347: FreeBSD OPIE opiepasswd User Verification Vulnerability
- SECTRACK ID: 1015817: OPIE on FreeBSD May Let Local Users Modify the Configuration or Remote Users Gain Root Access
Platforms Affected:
- FreeBSD FreeBSD
Reported:
Mar 22, 2006
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