Jelsoft vBulletin 2.1.9 calendar.php command os command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Jelsoft vBulletin 2.1.9. Affected by this vulnerability is an unknown functionality of the file calendar.php. Performing a manipulation of the argument command results in os command injection. This vulnerability is known as CVE-2002-1660. Furthermore, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Jelsoft vBulletin 2.1.9 (Forum Software). This affects some unknown processing of the file calendar.php. The manipulation of the argument command with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

calendar.php in vBulletin before 2.2.0 allows remote attackers to execute arbitrary commands via shell metacharacters in the command parameter.

The bug was discovered 09/24/2002. The weakness was published 12/31/2002 (Website). The advisory is shared at securitytracker.com. This vulnerability is uniquely identified as CVE-2002-1660 since 05/04/2005. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1202 for this issue.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 98 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:calendar.php it is possible to find vulnerable targets with Google Hacking. The commercial vulnerability scanner Qualys is able to test this issue with plugin 10932 (VBulletin Calendar.PHP Command Execution Vulnerability).

Upgrading to version 2.2.0 eliminates this vulnerability. Attack attempts may be identified with Snort ID 1998.

The vulnerability is also documented in the databases at X-Force (10176), Exploit-DB (21874), SecurityFocus (BID 5820†), OSVDB (3299†) and SecurityTracker (ID 1005284†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: vBulletin 2.2.0

Snort ID: 1998
Snort Message: SERVER-WEBAPP calendar.php access
Snort Class: 🔍
SourceFire IPS: 🔍

Timelineinfo

09/24/2002 🔍
09/25/2002 +1 days 🔍
09/27/2002 +2 days 🔍
12/31/2002 +95 days 🔍
12/31/2002 +0 days 🔍
05/04/2005 +855 days 🔍
11/27/2005 +207 days 🔍
08/04/2014 +3172 days 🔍
09/02/2025 +4047 days 🔍

Sourcesinfo

Vendor: vbulletin.com

Advisory: securitytracker.com⛔
Status: Confirmed

CVE: CVE-2002-1660 (🔍)
GCVE (CVE): GCVE-0-2002-1660
GCVE (VulDB): GCVE-100-19305
X-Force: 10176
SecurityFocus: 5820 - VBulletin Calendar.PHP Command Execution Vulnerability
OSVDB: 3299 - vBulletin calendar.php could allow remote command execution
SecurityTracker: 1005284
Vulnerability Center: 9750 - vBulletin up to 2.1.9 Remote Code Execution via Shell Metacharacters, High

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/04/2014 11:41
Updated: 09/02/2025 11:18
Changes: 08/04/2014 11:41 (64), 06/11/2019 18:40 (8), 02/01/2025 13:27 (25), 09/02/2025 11:18 (2)
Complete: 🔍
Cache ID: 216:6FF:103

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

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