SSH Tectia CBC Information Disclosure

Medium Nessus Network Monitor Plugin ID 4761

Synopsis

The remote host may give an attacker information useful for future attacks.

Description

The remote Tectia SSH server is vulnerable to a flaw within its Cipher-Block Chaining (CBC) mode. An attacker exploiting this flaw would be able to obtain four (4) plaintext bytes of the encrypted session. Note: successful attack will result in the SSH session terminating.

Solution

Upgrade to version 4.4.12, 5.2.5, 5.3.9, 6.0.5 or higher.

See Also

http://www.securityfocus.com/bid/32319

Plugin Details

Severity: Medium

ID: 4761

Family: SSH

Published: 2008/11/18

Modified: 2016/02/05

Dependencies: 1967, 3059

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:N/A:P

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

CVSSv3

Base Score: 6.4

Temporal Score: 5.5

Vector: CVSS3#AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Temporal Vector: CVSS3#E:U/RL:O/RC:C

Reference Information

CVE: CVE-2008-5161

BID: 32319