VDB-199180 · CVE-2021-25268 · GCVE-0-2021-25268

Sophos Firewall up to 18.x Webadmin cross site scripting

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Sophos Firewall up to 18.x. This vulnerability affects unknown code of the component Webadmin. Executing a manipulation can lead to cross site scripting. This vulnerability is registered as CVE-2021-25268. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Sophos Firewall up to 18.x (Firewall Software). This vulnerability affects some unknown functionality of the component Webadmin. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity.

The weakness was published 05/06/2022. The advisory is shared for download at sophos.com. This vulnerability was named CVE-2021-25268 since 01/15/2021. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 19.0 GA eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Firewall Software

Vendor

Sophos

Name

Firewall

Version

18.x

License

commercial

Website

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

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 2.4
VulDB Temp Score: 2.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.4
CNA Vector (Sophos Limited): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firewall 19.0 GA

Timelineinfo

01/15/2021 🔍
05/06/2022 +475 days 🔍
05/06/2022 +0 days 🔍
05/08/2022 +2 days 🔍

Sourcesinfo

Vendor: sophos.com

Advisory: sophos.com
Status: Confirmed

CVE: CVE-2021-25268 (🔍)
GCVE (CVE): GCVE-0-2021-25268
GCVE (VulDB): GCVE-100-199180

Entryinfo

Created: 05/06/2022 11:41
Updated: 05/08/2022 17:09
Changes: 05/06/2022 11:41 (50), 05/08/2022 17:09 (1)
Complete: 🔍
Cache ID: 216::103