Sophos Web Appliance up to 4.3.1.1 session fixiation

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6.2$0-$5k0.00

A vulnerability was found in Sophos Web Appliance up to 4.3.1.1. It has been rated as critical. This issue affects an unknown functionality. The manipulation with an unknown input leads to a weak authentication vulnerability. Using CWE to declare the problem leads to CWE-384. Impacted is confidentiality, integrity, and availability.

The bug was discovered 03/30/2017. The weakness was disclosed 03/30/2017 by Russell Sanford (Website). It is possible to read the advisory at wsa.sophos.com. The identification of this vulnerability is CVE-2017-6412 since 03/01/2017. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

It is declared as proof-of-concept. The exploit is available at exploit-db.com. The vulnerability scanner Nessus provides a plugin with the ID 99237 (Sophos Web Appliance < 4.3.1.2 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context remote. The commercial vulnerability scanner Qualys is able to test this issue with plugin 87285 (Sophos Secure Web Appliance Multiple Vulnerabilities).

Upgrading to version 4.3.1.2 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 SecurityFocus (BID 97261) and Tenable (99237). The entries 99104, 99105 and 99106 are pretty similar.

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VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.2

VulDB Base Score: 5.6
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfoedit

Class: Weak authentication
CWE: CWE-384
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 99237
Nessus Name: Sophos Web Appliance < 4.3.1.2 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Web Appliance 4.3.1.2

Timelineinfoedit

03/01/2017 🔍
03/16/2017 +15 days 🔍
03/30/2017 +14 days 🔍
03/30/2017 +0 days 🔍
03/30/2017 +0 days 🔍
03/31/2017 +1 days 🔍
03/31/2017 +0 days 🔍
04/06/2017 +6 days 🔍
08/24/2020 +1236 days 🔍

Sourcesinfoedit

Vendor: https://www.sophos.com/

Advisory: wsa.sophos.com
Researcher: Russell Sanford
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-6412 (🔍)
SecurityFocus: 97261 - Sophos Web Appliance Multiple Command Injection and Session Fixation Vulnerabilities
OSVDB: - CVE-2017-6412 - Sophos Web Appliance - Session Fixation Issue

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

Entryinfoedit

Created: 03/31/2017 10:46 AM
Updated: 08/24/2020 09:48 AM
Changes: (10) vulnerability_discoverydate advisory_person_name advisory_confirm_url exploit_availability exploit_publicity exploit_url countermeasure_date source_osvdb_title source_securityfocus_date source_securityfocus_class
Complete: 🔍

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