XMLSoft libxml2 up to 2.6.14 Proxy Function nanoftp.c xmlnanoftpscanproxy 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.
9.0$0-$5k0.00

Summaryinfo

A vulnerability was found in XMLSoft libxml2 up to 2.6.14 and classified as critical. This impacts the function xmlnanoftpscanproxy of the file nanoftp.c of the component Proxy Function. The manipulation results in memory corruption. This vulnerability is known as CVE-2004-0989. Furthermore, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in XMLSoft libxml2 up to 2.6.14 (Document Processing Software). It has been classified as critical. Affected is the function xmlnanoftpscanproxy of the file nanoftp.c of the component Proxy Function. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Multiple buffer overflows in libXML 2.6.12 and 2.6.13 (libxml2), and possibly other versions, may allow remote attackers to execute arbitrary code via (1) a long FTP URL that is not properly handled by the xmlNanoFTPScanURL function, (2) a long proxy URL containing FTP data that is not properly handled by the xmlNanoFTPScanProxy function, and other overflows related to manipulation of DNS length values, including (3) xmlNanoFTPConnect, (4) xmlNanoHTTPConnectHost, and (5) xmlNanoHTTPConnectHost.

The weakness was published 10/25/2004 by infamous41md (Website). The advisory is shared for download at archives.neohapsis.com. This vulnerability is traded as CVE-2004-0989 since 10/27/2004. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

A public exploit has been developed in ANSI C and been published immediately after the advisory. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 15638 (Mandrake Linux Security Advisory : libxml/libxml2 (MDKSA-2004:127)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117947 (CentOS Security Update for libxml (CESA-2004:650)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (17870), Exploit-DB (24704), Tenable (15638), SecurityFocus (BID 11526†) and OSVDB (11179†). Similar entries are available at VDB-21645, VDB-82189 and VDB-82197. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
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: 15638
Nessus Name: Mandrake Linux Security Advisory : libxml/libxml2 (MDKSA-2004:127)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 53274
OpenVAS Name: Debian Security Advisory DSA 582-1 (libxml, libxml2)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

10/25/2004 🔍
10/25/2004 +0 days 🔍
10/25/2004 +0 days 🔍
10/26/2004 +0 days 🔍
10/26/2004 +0 days 🔍
10/27/2004 +1 days 🔍
10/28/2004 +1 days 🔍
11/04/2004 +6 days 🔍
11/05/2004 +1 days 🔍
01/30/2005 +86 days 🔍
03/01/2005 +30 days 🔍
03/10/2015 +3661 days 🔍
12/24/2024 +3577 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: infamous41md
Status: Confirmed

CVE: CVE-2004-0989 (🔍)
GCVE (CVE): GCVE-0-2004-0989
GCVE (VulDB): GCVE-100-24000

OVAL: 🔍

X-Force: 17870
SecurityFocus: 11526 - Libxml2 Multiple Remote Stack Buffer Overflow Vulnerabilities
Secunia: 13000
OSVDB: 11179 - libxml2 FTP URL Processing Overflow
SecurityTracker: 1011941
Vulnerability Center: 6938 - Code Execution in XMLSoft Libxml via Multiple Buffer Overflows, High

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

Entryinfo

Created: 03/10/2015 15:27
Updated: 12/24/2024 13:38
Changes: 03/10/2015 15:27 (86), 05/29/2019 16:40 (7), 12/24/2024 13:38 (18)
Complete: 🔍
Cache ID: 216:0D4:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!