Squid Proxy up to 2.6.STABLE7 FTP URL resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Squid Proxy up to 2.6.STABLE7. It has been rated as critical. This affects an unknown function of the component FTP URL Handler. Performing a manipulation results in resource management. This vulnerability is known as CVE-2007-0247. Remote exploitation of the attack is possible. Furthermore, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in Squid Proxy up to 2.6.STABLE7 (Firewall Software). This affects an unknown function of the component FTP URL Handler. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

squid/src/ftp.c in Squid before 2.6.STABLE7 allows remote FTP servers to cause a denial of service (core dump) via crafted FTP directory listing responses, possibly related to the (1) ftpListingFinish and (2) ftpHtmlifyListEntry functions.

The bug was discovered 08/23/2006. The weakness was published 01/16/2007 with Squid Team (Website). It is possible to read the advisory at squid-cache.org. This vulnerability is uniquely identified as CVE-2007-0247 since 01/16/2007. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

The exploit is shared for download 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 146 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 24226 (Fedora Core 5 : squid-2.5.STABLE14-3.FC5 (2007-092)), 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 165102 (SUSE Security Update for squid (SUSE-SA:2007:012)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at squid-cache.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 10135. In this case the pattern GET is used for detection.

The vulnerability is also documented in the databases at X-Force (31523), Exploit-DB (29473), Tenable (24226), SecurityFocus (BID 22079†) and OSVDB (39839†). Similar entries are available at VDB-2836 and VDB-34390. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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: 24226
Nessus Name: Fedora Core 5 : squid-2.5.STABLE14-3.FC5 (2007-092)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 861378
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: Upgrade
Status: 🔍

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

Patch: squid-cache.org

Snort ID: 10135
Snort Message: DOS Squid proxy FTP denial of service attempt
Snort Pattern: 🔍

Timelineinfo

08/23/2006 🔍
01/16/2007 +146 days 🔍
01/16/2007 +0 days 🔍
01/16/2007 +0 days 🔍
01/16/2007 +0 days 🔍
01/18/2007 +2 days 🔍
01/22/2007 +4 days 🔍
01/25/2007 +3 days 🔍
01/26/2007 +1 days 🔍
08/24/2007 +209 days 🔍
12/28/2024 +6336 days 🔍

Sourcesinfo

Vendor: squid-cache.org

Advisory: squid-cache.org
Researcher: http://www.squid-cache.org
Organization: Squid Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-0247 (🔍)
GCVE (CVE): GCVE-0-2007-0247
GCVE (VulDB): GCVE-100-2835
X-Force: 31523 - Squid ftpListingFinish() and ftpHtmlifyListEntry() denial of service, Medium Risk
SecurityFocus: 22079 - Squid Proxy FTP URI Remote Denial of Service Vulnerability
Secunia: 23946 - Gentoo update for squid, Less Critical
OSVDB: 39839 - Squid squid/src/ftp.c Crafted FTP Directory Listing DoS
Vupen: ADV-2007-0199

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

Entryinfo

Created: 01/22/2007 09:49
Updated: 12/28/2024 23:25
Changes: 01/22/2007 09:49 (95), 09/05/2019 13:35 (2), 12/28/2024 23:25 (24)
Complete: 🔍
Cache ID: 216:405:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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