squidGuard up to 1.4 Blocked Site Link squidGuard.cgi cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in squidGuard up to 1.4. This issue affects some unknown processing of the file squidGuard.cgi of the component Blocked Site Link Handler. The manipulation leads to cross site scripting. This vulnerability is traded as CVE-2015-8936. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in squidGuard up to 1.4 (Firewall Software). It has been rated as problematic. This issue affects some unknown functionality of the file squidGuard.cgi of the component Blocked Site Link Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is:

Cross-site scripting (XSS) vulnerability in squidGuard.cgi in squidGuard before 1.5 allows remote attackers to inject arbitrary web script or HTML via a blocked site link.

The bug was discovered 06/20/2016. The weakness was shared 02/09/2017 by Marcus Meissner (Website). The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2015-8936 since 06/21/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 92266 (Fedora 24 : squidGuard (2016-8b19472a3c)), 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 170008 (SUSE Enterprise Linux Security Update for squidGuard (SUSE-SU-2017:1411-1)).

Upgrading to version 1.5 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (92266) and SecurityFocus (BID 91305†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 92266
Nessus Name: Fedora 24 : squidGuard (2016-8b19472a3c)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 65653
OpenVAS Name: Fedora Update for squidGuard FEDORA-2016-f8a01aa629
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: squidGuard 1.5

Timelineinfo

06/20/2016 🔍
06/20/2016 +0 days 🔍
06/21/2016 +1 days 🔍
06/30/2016 +9 days 🔍
07/15/2016 +15 days 🔍
02/09/2017 +209 days 🔍
02/09/2017 +0 days 🔍
02/09/2017 +0 days 🔍
11/04/2024 +2825 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Marcus Meissner
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-8936 (🔍)
GCVE (CVE): GCVE-0-2015-8936
GCVE (VulDB): GCVE-100-96749
SecurityFocus: 91305 - squidGuard 'squidGuard.cgi' Cross Site Scripting Vulnerability
OSVDB: - CVE-2015-8936 - squidGuard - Cross-Site Scripting Issue

Entryinfo

Created: 02/09/2017 19:31
Updated: 11/04/2024 15:00
Changes: 02/09/2017 19:31 (71), 08/12/2020 17:17 (8), 11/04/2024 15:00 (20)
Complete: 🔍
Cache ID: 216::103

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