Apache HTTP Server up to 1.3.26 Shared Memory Scoreboard denial of service

CVSS Meta Temp Score
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CTI Interest Score
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3.8$0-$5k0.00

A vulnerability was found in Apache HTTP Server up to 1.3.26 (Web Server). It has been classified as problematic. Affected is an unknown part of the component Shared Memory Scoreboard. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user running as the Apache UID to send a SIGUSR1 signal to any process as root, resulting in a denial of service (process kill) or possibly other behaviors that would not normally be allowed, by modifying the parent[].pid and parent[].last_rtime segments in the scoreboard.

The weakness was published 10/11/2002 by zen-parse (Website). The advisory is available at archives.neohapsis.com. This vulnerability is traded as CVE-2002-0839. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 17492 (HP-UX PHSS_28111 : HP-UX Running Apache, Increased Privileges or Denial of Service (DoS) or Execution of Arbitrary Code (HPSBUX00224 SSRT2393 rev.3)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family HP-UX Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 86686 (Red Hat Apache Buffer Overflow and Cross-Site Scripting Vulnerabilities).

Upgrading to version 1.3.27 eliminates this vulnerability. A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (10280) and Tenable (17492). Similar entries are available at 19051, 19052 and 19073.

Productinfo

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Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
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VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Nessus ID: 17492
Nessus Name: HP-UX PHSS_28111 : HP-UX Running Apache, Increased Privileges or Denial of Service (DoS) or Execution of Arbitrary Code (HPSBUX00224 SSRT2393 rev.3)
Nessus File: 🔍
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OpenVAS ID: 53735
OpenVAS Name: Debian Security Advisory DSA 187-1 (apache)
OpenVAS File: 🔍
OpenVAS Family: 🔍

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Qualys Name: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Upgrade: HTTP Server 1.3.27

Timelineinfo

10/03/2002 🔍
10/11/2002 +8 days 🔍
10/11/2002 +0 days 🔍
10/11/2002 +0 days 🔍
02/07/2003 +119 days 🔍
05/14/2003 +96 days 🔍
03/18/2005 +674 days 🔍
07/30/2014 +3421 days 🔍
05/09/2019 +1744 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: archives.neohapsis.com
Researcher: zen-parse
Status: Not defined
Confirmation: 🔍

CVE: CVE-2002-0839 (🔍)
X-Force: 10280
Vulnerability Center: 1164 - Apache < 1.3.27 Privilege Elevation by Local UID Users, Medium
SecurityFocus: 5884 - Apache Web Server Scoreboard Memory Segment Overwriting SIGUSR1 Sending Vulnerability

See also: 🔍

Entryinfo

Created: 07/30/2014 16:42
Updated: 05/09/2019 20:30
Changes: 07/30/2014 16:42 (77), 05/09/2019 20:30 (2)
Complete: 🔍

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