Sophos Firewall cross-site scripting | CVE-2021-25268
NAME
Sophos Firewall cross-site scripting
- Platforms Affected:
Sophos Firewall 18.5 MR3
Sophos Firewall 18.5 MR2
Sophos Firewall 18.4 - Risk Level:
8.4 - Exploitability:
Unproven - Consequences:
Cross-Site Scripting
DESCRIPTION
Sophos Firewall is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the Webadmin component. A remote authenticated attacker could exploit this vulnerability to inject malicious script into a Web page which would be executed in a victim’s Web browser within the security context of the hosting Web site, once the page is viewed. An attacker could use this vulnerability to steal the victim’s cookie-based authentication credentials, and escalate their privileges from MySophos admin to SFOS admin.
CVSS 3.0 Information
- Privileges Required: High
- User Interaction: Required
- Scope: Changed
- Access Vector: Network
- Access Complexity: Low
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Remediation Level: Official Fix
MITIGATION
Refer to sophos-sa-20220505-sfos-19-0-0 for patch, upgrade or suggested workaround information. See References.
- Reference Link:
https://www.sophos.com/en-us/security-advisories/sophos-sa-20220505-sfos-19-0-0 - Reference Link:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25268
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