Mono 1.1/1.2.1/2.0 HTTP Request System.web

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Mono 1.1/1.2.1/2.0. This affects the function System.web of the component HTTP Request Handler. This manipulation with the input %20 causes an unknown weakness. This vulnerability is registered as CVE-2006-6104. Furthermore, an exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability has been found in Mono 1.1/1.2.1/2.0 and classified as critical. Affected by this vulnerability is the function System.web of the component HTTP Request Handler. The manipulation with the input value %20 leads to a unknown weakness. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

The System.Web class in the XSP for ASP.NET server 1.1 through 2.0 in Mono does not properly verify local pathnames, which allows remote attackers to (1) read source code by appending a space (%20) to a URI, and (2) read credentials via a request for Web.Config%20.

The bug was discovered 12/20/2006. The weakness was published 12/21/2006 by José Ramón Palanco (Website). The advisory is shared at eazel.es. This vulnerability is known as CVE-2006-6104 since 11/24/2006. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is possible to download the exploit 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 1 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 24197 (Fedora Core 6 : mono-1.1.17.1-4.fc6 (2007-067)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165093 (SUSE Security Update for mono-web (SUSE-SA:2007:002)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at eazel.es. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (31010), Exploit-DB (29302), Tenable (24197), SecurityFocus (BID 21687†) and OSVDB (32391†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.8
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Unknown
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 24197
Nessus Name: Fedora Core 6 : mono-1.1.17.1-4.fc6 (2007-067)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 861467
OpenVAS Name: Family Connections argv[1] Parameter Remote Arbitrary Command Execution Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: eazel.es

Timelineinfo

11/24/2006 🔍
12/20/2006 +26 days 🔍
12/20/2006 +0 days 🔍
12/20/2006 +0 days 🔍
12/21/2006 +1 days 🔍
12/21/2006 +0 days 🔍
12/21/2006 +0 days 🔍
12/21/2006 +0 days 🔍
12/22/2006 +0 days 🔍
12/26/2006 +4 days 🔍
01/16/2007 +21 days 🔍
01/17/2007 +1 days 🔍
06/15/2025 +6724 days 🔍

Sourcesinfo

Advisory: eazel.es
Researcher: José Ramón Palanco
Status: Confirmed

CVE: CVE-2006-6104 (🔍)
GCVE (CVE): GCVE-0-2006-6104
GCVE (VulDB): GCVE-100-2785

OVAL: 🔍

X-Force: 31010
SecurityFocus: 21687 - Mono XSP Source Code Information Disclosure Vulnerability
Secunia: 23779 - Gentoo update for mono, Moderately Critical
OSVDB: 32391 - Mono XSP for ASP.NET Server System.Web Class %20 Request Script Source Code Disclosure
SecurityTracker: 1017430
SecuriTeam: securiteam.com
Vulnerability Center: 13614 - Mono XSP before 2.0 rev 68766 Remote Source Code Disclosure Vulnerability, Medium
Vupen: ADV-2006-5099

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

Entryinfo

Created: 12/22/2006 10:31
Updated: 06/15/2025 16:06
Changes: 12/22/2006 10:31 (98), 07/12/2019 17:03 (1), 02/22/2025 09:15 (20), 06/15/2025 16:06 (2)
Complete: 🔍
Cache ID: 216::103

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

Discussion

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