Activestate Activeperl 5.6.1.629 HTTP Request Encoding perlis.dll memory corruption

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.
6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Activestate Activeperl 5.6.1.629. It has been declared as critical. This affects an unknown function in the library perlis.dll of the component HTTP Request Encoding Handler. Executing a manipulation with the input <filename>.pl can lead to memory corruption. The identification of this vulnerability is CVE-2001-0815. Furthermore, there is an exploit available. The application of restrictive firewalling is recommended.

Detailsinfo

A vulnerability was found in Activestate Activeperl 5.6.1.629 (Programming Language Software). It has been declared as critical. This vulnerability affects some unknown processing in the library perlis.dll of the component HTTP Request Encoding Handler. The manipulation with the input value <filename>.pl leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in PerlIS.dll in Activestate ActivePerl 5.6.1.629 and earlier allows remote attackers to exute arbitrary code via an HTTP request for a long filename that ends in a .pl extension.

The bug was discovered 11/15/2001. The weakness was shared 11/15/2001 by NSFocus Security Team with NSFOCUS Security Team (Website). The advisory is available at archives.neohapsis.com. This vulnerability was named CVE-2001-0815. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known.

A public exploit has been developed in ANSI C and been published immediately after the advisory. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 10811 (ActivePerl perlIS.dll Remote Buffer Overflow), 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 r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 10433 (ActiveState ActivePerl perlIIS.dll Buffer Overflow Vulnerability).

Proper firewalling of is able to address this issue.

The vulnerability is also documented in the databases at X-Force (7539), Exploit-DB (21152), Tenable (10811), SecurityFocus (BID 3526†) and OSVDB (678†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 10811
Nessus Name: ActivePerl perlIS.dll Remote Buffer Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 10811
OpenVAS Name: ActivePerl perlIS.dll Buffer Overflow
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍

Timelineinfo

11/15/2001 🔍
11/15/2001 +0 days 🔍
11/15/2001 +0 days 🔍
11/15/2001 +0 days 🔍
11/26/2001 +11 days 🔍
12/06/2001 +10 days 🔍
12/06/2001 +0 days 🔍
09/12/2002 +280 days 🔍
12/12/2002 +90 days 🔍
07/10/2014 +4228 days 🔍
10/04/2025 +4104 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: NSFocus Security Team
Organization: NSFOCUS Security Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2001-0815 (🔍)
GCVE (CVE): GCVE-0-2001-0815
GCVE (VulDB): GCVE-100-17674
X-Force: 7539
SecurityFocus: 3526 - ActivePerl perlIIS.dll Buffer Overflow Vulnerability
OSVDB: 678 - ActivePerl perlIS.dll Remote Filename Overflow
Vulnerability Center: 352 - Buffer Overflow in ActivePerl perlIIS.dll Enables Arbitrary Code Execution, High

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

Entryinfo

Created: 07/10/2014 17:10
Updated: 10/04/2025 13:00
Changes: 07/10/2014 17:10 (79), 05/06/2019 14:11 (7), 11/20/2024 10:44 (21), 10/04/2025 13:00 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!