IBM HTTP Server 8.5.0.0 <= 8.5.5.5 / 8.0.0.0 <= 8.0.0.10 / 7.0.0.0 <= 7.0.0.37 Information Disclosure (260001)

medium Nessus Plugin ID 144303
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VPR Score: 2.4

Synopsis

The remote web server is affected by a vulnerability.

Description

The version of IBM HTTP Server running on the remote host is affected by a vulnerability. The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic that occasionally relies on keys affected by the Invariance Weakness, and then using a brute-force approach involving LSB values, aka the 'Bar Mitzvah' issue.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to IBM HTTP Server version 8.5.5.6, 8.0.0.11, 7.0.0.39 or later. Alternatively, upgrade to the minimal fix pack level required by the interim fix and then apply Interim Fix PI34229.

See Also

https://www.ibm.com/support/pages/node/260001

Plugin Details

Severity: Medium

ID: 144303

File Name: ibm_http_server_260001.nasl

Version: 1.3

Type: local

Agent: unix

Family: Web Servers

Published: 12/16/2020

Updated: 1/25/2021

Dependencies: ibm_http_server_nix_installed.nbin

Risk Information

Risk Factor: Medium

VPR Score: 2.4

CVSS Score Source: CVE-2015-2808

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

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

CVSS v3.0

Base Score: 5.8

Temporal Score: 5.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

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

Vulnerability Information

CPE: cpe:/a:ibm:http_server

Required KB Items: installed_sw/IBM HTTP Server (IHS)

Exploit Ease: No known exploits are available

Patch Publication Date: 4/9/2015

Vulnerability Publication Date: 4/9/2015

Reference Information

CVE: CVE-2015-2808

BID: 73684