Vulnerability Name:

CVE-2021-25267 (CCN-225896)

Assigned:2021-01-15
Published:2022-05-05
Updated:2022-05-13
Summary:Multiple XSS vulnerabilities in Webadmin allow for privilege escalation from admin to super-admin in Sophos Firewall older than version 19.0 GA.
CVSS v3 Severity:8.4 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H)
7.3 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
6.8 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H)
5.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:8.5 High (CVSS v2 Vector: AV:N/AC:M/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
8.3 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:M/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Multiple_Instances
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-79
Vulnerability Consequences:Cross-Site Scripting
References:Source: MITRE
Type: CNA
CVE-2021-25267

Source: XF
Type: UNKNOWN
sophos-cve202125267-xss(225896)

Source: CCN
Type: sophos-sa-20220505-sfos-19-0-0
Sophos Firewall v19.0 GA Resolves Security Vulnerabilities (CVE-2022-1040, CVE-2021-25268, CVE-2021-25267, CVE-2022-0331)

Source: CONFIRM
Type: Release Notes, Vendor Advisory
https://www.sophos.com/en-us/security-advisories/sophos-sa-20220505-sfos-19-0-0

Vulnerable Configuration:Configuration 1:
  • cpe:/o:sophos:firewall_firmware:*:*:*:*:*:*:*:* (Version < 19.0)
  • AND
  • cpe:/h:sophos:firewall:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    sophos firewall firmware *
    sophos firewall -