Cyrus IMAPd NNTP AUTHINFO USER Command Parsing Authentication Bypass
medium Nessus Plugin ID 57336
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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
https://secuniaresearch.flexerasoftware.com/secunia_research/2011-68/
Plugin Details
Severity: Medium
ID: 57336
File Name: cyrus_imap_nntp_auth_bypass.nasl
Version: 1.8
Type: remote
Family: General
Published: 12/19/2011
Updated: 2/24/2021
Dependencies: nntp_anonymous.nasl
Risk Information
CVSS Score Source: manual
CVSS Score Rationale: Based on analysis of vulnerability
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 4.7
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N
Temporal Vector: E:U/RL:OF/RC:C
Vulnerability Information
CPE: cpe:/a:cmu:cyrus_imap_server
Exploit Ease: No known exploits are available
Patch Publication Date: 10/4/2011
Vulnerability Publication Date: 10/4/2011
Reference Information
CVE: CVE-2011-3372
BID: 49949