Seamons Perl 2.007 Net::Server Modul hostname access control

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability has been found in Seamons Perl 2.007 (Programming Language Software) and classified as critical. This vulnerability affects an unknown code block of the component Net::Server Modul. The manipulation of the argument hostname with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect integrity. CVE summarizes:

Net-Server, when the reverse-lookups option is enabled, does not check if the hostname resolves to the source IP address, which might allow remote attackers to bypass ACL restrictions via the hostname parameter.

The bug was discovered 01/26/2013. The weakness was disclosed 03/04/2013 by Remi Gacogne as not defined mailinglist post (oss-sec). The advisory is shared for download at seclists.org. The public release happened without coordination with the vendor. This vulnerability was named CVE-2013-1841 since 02/19/2013. 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. The MITRE ATT&CK project declares the attack technique as T1068.

A public exploit has been developed by Remi Gacogne and been published immediately after the advisory. It is possible to download the exploit at seclists.org. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 37 days. During that time the estimated underground price was around $0-$5k.

The best possible mitigation is suggested to be disabling the affected component.

The vulnerability is also documented in the vulnerability database at X-Force (82900).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: Remi Gacogne
Download: 🔍

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Disable
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

01/26/2013 🔍
02/19/2013 +24 days 🔍
03/04/2013 +13 days 🔍
03/04/2013 +0 days 🔍
03/04/2013 +0 days 🔍
03/05/2013 +1 days 🔍
06/13/2014 +465 days 🔍
05/04/2018 +1421 days 🔍

Sourcesinfo

Advisory: seclists.org
Researcher: Remi Gacogne
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-1841 (🔍)
X-Force: 82900 - Net-Server allow_deny() function security bypass
SecurityFocus: 58309 - Net-Server 'allow_deny()' Function Security Bypass Vulnerability
OSVDB: 90834

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

Entryinfo

Created: 03/05/2013 17:09
Updated: 05/04/2018 09:05
Changes: 03/05/2013 17:09 (62), 05/04/2018 09:05 (6)
Complete: 🔍
Committer:

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