University of Kansas Lynx 2.8.2 Rel1 up to 2.8.4 Rel1 HTTP Header privileges management

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

A vulnerability has been found in University of Kansas Lynx 2.8.2 Rel1 up to 2.8.4 Rel1 (Web Browser) and classified as critical. This vulnerability affects an unknown part of the component HTTP Header Handler. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect integrity. CVE summarizes:

CRLF injection vulnerability in Lynx 2.8.4 and earlier allows remote attackers to inject false HTTP headers into an HTTP request that is provided on the command line, via a URL containing encoded carriage return, line feed, and other whitespace characters.

The bug was discovered 08/18/2002. The weakness was presented 02/19/2003 by Ulf Harnhammar (Website). The advisory is shared for download at marc.info. This vulnerability was named CVE-2002-1405. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

A public exploit has been developed in Perl. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 185 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 14008 (Mandrake Linux Security Advisory : lynx (MDKSA-2003:023)), 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.

Upgrading eliminates this vulnerability. A possible mitigation has been published 5 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (9887) and Tenable (14008).

Productinfo

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CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
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CVSSv2info

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Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
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Nessus ID: 14008
Nessus Name: Mandrake Linux Security Advisory : lynx (MDKSA-2003:023)
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OpenVAS ID: 53858
OpenVAS Name: Debian Security Advisory DSA 210-1 (lynx, lynx-ssl)
OpenVAS File: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Timelineinfo

08/18/2002 🔍
08/18/2002 +0 days 🔍
08/19/2002 +1 days 🔍
02/19/2003 +184 days 🔍
02/19/2003 +0 days 🔍
02/24/2003 +5 days 🔍
07/31/2004 +523 days 🔍
05/23/2005 +296 days 🔍
08/07/2014 +3363 days 🔍
06/04/2019 +1762 days 🔍

Sourcesinfo

Advisory: marc.info
Researcher: Ulf Harnhammar
Status: Not defined

CVE: CVE-2002-1405 (🔍)
X-Force: 9887
Vulnerability Center: 8080 - CRLF Injection in Lynx <= 2.8.4, Medium
SecurityFocus: 5499 - Lynx Command Line URL CRLF Injection Vulnerability
OSVDB: 12657 - Lynx CRLF injection could be used to send faked HTTP headers

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

Entryinfo

Created: 08/07/2014 17:53
Updated: 06/04/2019 14:33
Changes: 08/07/2014 17:53 (76), 06/04/2019 14:33 (6)
Complete: 🔍

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