CGI Interpreter code injection

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.6$0-$5k0.00

A vulnerability, which was classified as very critical, has been found in CGI Interpreter (affected version not known). Affected by this issue is some unknown functionality. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-94. Impacted is confidentiality, integrity, and availability. CVE summarizes:

perl sh csh or other shell interpreters are installed in the cgi-bin directory on a www site which allows remote attackers to execute arbitrary commands.

The weakness was released 05/29/1996. This vulnerability is handled as CVE-1999-0509. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/06/2019). This vulnerability has a historic impact due to its background and reception.

The vulnerability scanner Nessus provides a plugin with the ID 10173 (Web Server /cgi-bin Perl Interpreter Access), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context remote. The commercial vulnerability scanner Qualys is able to test this issue with plugin 10208 (Shell Interpreter Present in the CGI Directory Vulnerability).

The problem might be mitigated by replacing the product with as an alternative. Attack attempts may be identified with Snort ID 832. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 1202.

The vulnerability is also documented in the databases at X-Force (146), Vulnerability Center (SBV-408) and Tenable (10173).

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VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2infoedit

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VulDB Base Score: 🔍
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Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-94
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10173
Nessus Name: Web Server /cgi-bin Perl Interpreter Access
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

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Countermeasuresinfoedit

Recommended: Alternative
Status: 🔍

0-Day Time: 🔍
Snort ID: 832
Snort Message: SERVER-WEBAPP perl.exe access
Snort Class: 🔍

Suricata ID: 2101649
Suricata Class: 🔍
Suricata Message: 🔍

TippingPoint: 🔍

McAfee IPS: 🔍
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SourceFire IPS: 🔍
ISS Proventia IPS: 🔍

Timelineinfoedit

05/29/1996 🔍
05/29/1996 +0 days 🔍
05/29/1996 +0 days 🔍
06/22/1999 +1119 days 🔍
12/17/2002 +1274 days 🔍
06/17/2014 +4200 days 🔍
04/18/2016 +671 days 🔍
05/06/2019 +1113 days 🔍

Sourcesinfoedit

Status: Not defined

CVE: CVE-1999-0509 (🔍)
X-Force: 146
Vulnerability Center: 408 - CGI-BIN Shell Allow Commands Execution, High

Entryinfoedit

Created: 06/17/2014 05:03 PM
Updated: 05/06/2019 05:09 PM
Changes: (1) source_qualys_id
Complete: 🔍

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