National Cyber-Alert System
Vulnerability Summary for CVE-2002-0839
Original release date:10/11/2002
Last revised:09/10/2008
Source:
US-CERT/NIST
Overview
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.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
10.0
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Provides administrator access, Allows complete confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service
- Official Statement from Apache (07/02/2008)
-
Fixed in Apache HTTP Server 1.3.27:
http://httpd.apache.org/security/vulnerabilities_13.html
References to Advisories, Solutions, and Tools
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External Source: VULNWATCH
Name: 20021003 iDEFENSE Security Advisory 10.03.2002: Apache 1.3.x shared memory scoreboard vulnerabilities
Type: Advisory; Patch Information
External Source: BID
Name: 5884
External Source: ENGARDE
Name: ESA-20021007-024
External Source: MANDRAKE
Name: MDKSA-2002:068
External Source: XF
Name: apache-scorecard-memory-overwrite(10280)
Type: Advisory
External Source: DEBIAN
Name: DSA-195
External Source: DEBIAN
Name: DSA-188
External Source: DEBIAN
Name: DSA-187
External Source: CONFIRM
Name: http://www.apacheweek.com/issues/02-10-04
Type: Advisory
External Source: HP
Name: HPSBUX0210-224
External Source: BUGTRAQ
Name: 20021017 TSLSA-2002-0069-apache
External Source: BUGTRAQ
Name: 20021015 GLSA: apache
External Source: SGI
Name: 20021105-01-I
External Source: BUGTRAQ
Name: 20021003 [OpenPKG-SA-2002.009] OpenPKG Security Advisory (apache)
External Source: CONFIRM
Name: http://marc.theaimsgroup.com/?l=apache-httpd-announce&m=103367938230488&w=2
External Source: CONECTIVA
Name: CLA-2002:530