Sophos Web Protection Appliance up to 3.7.9 Shell opt/ws/bin/sblistpack get_referers domain os command injection

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Sophos Web Protection Appliance up to 3.7.9. This affects the function get_referers of the file opt/ws/bin/sblistpack of the component Shell. This manipulation of the argument domain causes os command injection. This vulnerability is tracked as CVE-2013-4983. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Sophos Web Protection Appliance up to 3.7.9. It has been declared as very critical. Affected by this vulnerability is the function get_referers of the file opt/ws/bin/sblistpack of the component Shell. The manipulation of the argument domain with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The get_referers function in /opt/ws/bin/sblistpack in Sophos Web Appliance before 3.7.9.1 and 3.8 before 3.8.1.1 allows remote attackers to execute arbitrary commands via shell metacharacters in the domain parameter to end-user/index.php.

The weakness was disclosed 09/06/2013 by Francisco Falcon with Core as Pre-authentication OS command injection vulnerability as confirmed advisory (Website). The advisory is shared at coresecurity.com. The public release has been coordinated in cooperation with Sophos. This vulnerability is known as CVE-2013-4983 since 07/29/2013. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/30/2024). MITRE ATT&CK project uses the attack technique T1202 for this issue.

A public exploit has been developed by Core Security and been published immediately after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 70142 (Sophos Web Protection Appliance Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses.

Upgrading to version 3.7.9.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 17116.

The vulnerability is also documented in the databases at Exploit-DB (28175), Tenable (70142), SecurityFocus (BID 62263†), OSVDB (97029†) and Secunia (SA54680†). The entry VDB-10176 is pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: Core Security
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 70142
Nessus Name: Sophos Web Protection Appliance Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 802281
OpenVAS Name: Sophos Web Protection Appliance Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

MetaSploit ID: sophos_wpa_sblistpack_exec.rb
MetaSploit Name: Sophos Web Protection Appliance sblistpack Arbitrary Command Execution
MetaSploit File: 🔍

D2Sec: Sophos Web Protection Appliance 3.8.1 RCE

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Web Protection Appliance 3.7.9.1
TippingPoint: 🔍
Fortigate IPS: 🔍

Timelineinfo

07/29/2013 🔍
09/06/2013 +39 days 🔍
09/06/2013 +0 days 🔍
09/06/2013 +0 days 🔍
09/06/2013 +0 days 🔍
09/09/2013 +3 days 🔍
09/09/2013 +0 days 🔍
09/10/2013 +1 days 🔍
09/10/2013 +0 days 🔍
09/10/2013 +0 days 🔍
09/10/2013 +0 days 🔍
09/26/2013 +16 days 🔍
06/30/2024 +3930 days 🔍

Sourcesinfo

Vendor: sophos.com

Advisory: Pre-authentication OS command injection vulnerability
Researcher: Francisco Falcon
Organization: Core
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-4983 (🔍)
GCVE (CVE): GCVE-0-2013-4983
GCVE (VulDB): GCVE-100-10177
SecurityFocus: 62263 - Sophos Web Appliance CVE-2013-4983 Remote Command Injection Vulnerability
Secunia: 54680 - Sophos Web Appliance Cookie Disclosure and Command Injection Vulnerabilities, Moderately Critical
OSVDB: 97029
Vulnerability Center: 41397 - Sophos Web Appliance Before 3.7.9.1 and 3.8 Through 3.8.1 Remote Code Execution (CVE-2013-4983), Critical

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

Entryinfo

Created: 09/10/2013 11:12
Updated: 06/30/2024 20:48
Changes: 09/10/2013 11:12 (95), 01/29/2018 16:09 (4), 05/24/2021 08:59 (2), 06/30/2024 20:48 (14)
Complete: 🔍
Committer: olku
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!