Apache HTTP Server up to 2.0.47 mod_cgid information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Apache HTTP Server up to 2.0.47. The impacted element is an unknown function of the component mod_cgid. This manipulation causes information disclosure. The identification of this vulnerability is CVE-2003-0789. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apache HTTP Server up to 2.0.47 (Web Server) and classified as very critical. Affected by this vulnerability is some unknown processing of the component mod_cgid. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

mod_cgid in Apache before 2.0.48, when using a threaded MPM, does not properly handle CGI redirect paths, which could cause Apache to send the output of a CGI program to the wrong client.

The weakness was shared 11/03/2003 with Apache (Website). The advisory is shared at redhat.com. This vulnerability is known as CVE-2003-0789 since 09/17/2003. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/12/2025). MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 11853 (Apache 2.0.x < 2.0.48 Multiple Vulnerabilities (OF, Info Disc.)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 86600 (Apache HTTP Server Buffer Overflow Vulnerabilities In mod_alias And mod_rewrite).

Upgrading to version 2.0.48 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (13552), Tenable (11853), SecurityFocus (BID 8926†) and Vulnerability Center (SBV-2916†). The entry VDB-20927 is related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 11853
Nessus Name: Apache 2.0.x < 2.0.48 Multiple Vulnerabilities (OF, Info Disc.)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 835103
OpenVAS Name: HP StorageWorks Default Accounts and Directory Traversal Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: HTTP Server 2.0.48

Timelineinfo

09/17/2003 🔍
09/26/2003 +9 days 🔍
10/29/2003 +33 days 🔍
11/03/2003 +5 days 🔍
11/03/2003 +0 days 🔍
11/03/2003 +0 days 🔍
11/24/2003 +21 days 🔍
08/15/2014 +3917 days 🔍
08/12/2025 +4015 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: redhat.com
Organization: Apache
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2003-0789 (🔍)
GCVE (CVE): GCVE-0-2003-0789
GCVE (VulDB): GCVE-100-20929
X-Force: 13552
SecurityFocus: 8926 - Apache Web Server mod_cgid Module CGI Data Redirection Vulnerability
Vulnerability Center: 2916 - Mod_cgid in Apache < 2.0.48 CGI Data Redirection, Critical

See also: 🔍

Entryinfo

Created: 08/15/2014 16:00
Updated: 08/12/2025 10:38
Changes: 08/15/2014 16:00 (61), 05/16/2019 20:50 (13), 08/12/2025 10:38 (19)
Complete: 🔍
Cache ID: 216:557:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!