Exim < 4.83 Math Comparison Functions Data Insertion

Medium Nessus Plugin ID 77055

Synopsis

The remote mail server is potentially affected by a data insertion vulnerability.

Description

According to its banner, the version of Exim running on the remote host is prior to 4.83. It is, therefore, potentially affected by a data insertion vulnerability. A flaw exists in the expansion of arguments to math comparison functions which can cause values to be expanded twice. This could permit a local attacker to insert arbitrary data.

Solution

Upgrade to Exim 4.83 or later.

See Also

ftp://ftp.exim.org/pub/exim/exim4/

https://lists.exim.org/lurker/message/20140722.160524.be7e58a9.en.html

ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.83

Plugin Details

Severity: Medium

ID: 77055

File Name: exim_4_83.nasl

Version: 1.3

Type: remote

Published: 2014/08/07

Updated: 2019/11/25

Dependencies: 10263

Configuration: Enable paranoid mode

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2014-2972

CVSS v2.0

Base Score: 4.6

Temporal Score: 3.4

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

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

Vulnerability Information

CPE: cpe:/a:exim:exim

Required KB Items: Settings/ParanoidReport

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2012/07/22

Vulnerability Publication Date: 2012/07/22

Reference Information

CVE: CVE-2014-2972

BID: 68857