imap/nntpd.c in the NNTP server (nntpd) for Cyrus IMAPd 2.4.x before 2.4.12 allows remote attackers to bypass authentication by sending an AUTHINFO USER command without sending an additional AUTHINFO PASS command.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Imapd | Cyrus | * | 2.4.11 (including) |
| Red Hat Enterprise Linux 4 | RedHat | cyrus-imapd-0:2.2.12-17.el4 | * |
| Red Hat Enterprise Linux 5 | RedHat | cyrus-imapd-0:2.3.7-12.el5_7.2 | * |
| Red Hat Enterprise Linux 6 | RedHat | cyrus-imapd-0:2.3.16-6.el6_1.4 | * |
| Cyrus-imapd-2.2 | Ubuntu | hardy | * |
| Cyrus-imapd-2.2 | Ubuntu | lucid | * |
| Cyrus-imapd-2.2 | Ubuntu | maverick | * |
| Cyrus-imapd-2.2 | Ubuntu | natty | * |
| Cyrus-imapd-2.2 | Ubuntu | oneiric | * |
| Cyrus-imapd-2.4 | Ubuntu | oneiric | * |
| Cyrus-imapd-2.4 | Ubuntu | upstream | * |
| Kolab-cyrus-imapd | Ubuntu | hardy | * |
| Kolab-cyrus-imapd | Ubuntu | lucid | * |
| Kolab-cyrus-imapd | Ubuntu | maverick | * |
| Kolab-cyrus-imapd | Ubuntu | natty | * |
| Kolab-cyrus-imapd | Ubuntu | oneiric | * |
| Kolab-cyrus-imapd | Ubuntu | precise | * |
| Kolab-cyrus-imapd | Ubuntu | quantal | * |
| Kolab-cyrus-imapd | Ubuntu | raring | * |
| Kolab-cyrus-imapd | Ubuntu | saucy | * |