IBM HTTP Server 8.0.0.0 <= 8.0.0.11 / 8.5.0.0 <= 8.5.5.6 (533837)

medium Nessus Plugin ID 144776
New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 1.4

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 BN_GF2m_mod_inv function in crypto/bn/bn_gf2m.c in OpenSSL before 0.9.8s, 1.0.0 before 1.0.0e, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b does not properly handle ECParameters structures in which the curve is over a malformed binary polynomial field, which allows remote attackers to cause a denial of service (infinite loop) via a session that uses an Elliptic Curve algorithm, as demonstrated by an attack against a server that supports client authentication.

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 8.5.5.7, 8.0.0.12 or later. Alternatively, upgrade to the minimal fix pack level required by the interim fix and then apply Interim Fix PI44809.

See Also

https://www.ibm.com/support/pages/node/533837

Plugin Details

Severity: Medium

ID: 144776

File Name: ibm_http_server_533837.nasl

Version: 1.3

Type: local

Agent: unix

Family: Web Servers

Published: 1/6/2021

Updated: 1/25/2021

Dependencies: ibm_http_server_nix_installed.nbin

Risk Information

Risk Factor: Medium

VPR Score: 1.4

CVSS Score Source: CVE-2015-1788

CVSS v2.0

Base Score: 4.3

Temporal Score: 3.2

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

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

CVSS v3.0

Base Score: 5.3

Temporal Score: 4.6

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

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: 9/10/2015

Vulnerability Publication Date: 9/10/2015

Reference Information

CVE: CVE-2015-1788

BID: 75164