Cyrus IMAPd NNTP AUTHINFO USER Command Parsing Authentication Bypass

Medium Nessus Plugin ID 57336

Synopsis

The remote NNTP server is affected by an authentication bypass vulnerability.

Description

The remote NNTP server contains a logic error that causes clients that send only a username, neglecting to send a password, to be treated as authenticated. This may permit an unauthenticated, remote attacker to view and post to restricted newsgroups, impersonating other users in the process.

Solution

Upgrade Cyrus IMAPd to version 2.4.12 or later.

See Also

http://secunia.com/secunia_research/2011-68/

Plugin Details

Severity: Medium

ID: 57336

File Name: cyrus_imap_nntp_auth_bypass.nasl

Version: 1.6

Type: remote

Family: General

Published: 2011/12/19

Modified: 2018/07/06

Dependencies: 57334

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:cmu:cyrus_imap_server

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2011/10/04

Vulnerability Publication Date: 2011/10/04

Reference Information

CVE: CVE-2011-3372

BID: 49949