Information disclosure in Sophos Firewall

1) Information disclosure

EUVDB-ID: #VU82288

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-5552

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a logic error in the Secure PDF eXchange (SPX) feature, if the password type is set to “specified by sender”. A remote attacker with full email access can decrypt PDFs in Sophos Firewall.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Sophos Firewall: 19.0.0 - 19.5.3

CPE2.3

• cpe:2.3:h:sophos:xg_firewall:19.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:sophos:xg_firewall:19.0.1:*:*:*:*:*:*:*
• cpe:2.3:h:sophos:xg_firewall:19.0.1.1:*:*:*:*:*:*:*
• cpe:2.3:h:sophos:xg_firewall:19.0.2:*:*:*:*:*:*:*
• cpe:2.3:h:sophos:xg_firewall:19.0.3:*:*:*:*:*:*:*
• cpe:2.3:h:sophos:xg_firewall:19.5.0:*:*:*:*:*:*:*
• cpe:2.3:h:sophos:xg_firewall:19.5.1:*:*:*:*:*:*:*
• cpe:2.3:h:sophos:xg_firewall:19.5.1.1:*:*:*:*:*:*:*
• cpe:2.3:h:sophos:xg_firewall:19.5.2:*:*:*:*:*:*:*
• cpe:2.3:h:sophos:xg_firewall:19.5.3:*:*:*:*:*:*:*

External links

https://www.sophos.com/en-us/security-advisories/sophos-sa-20231017-spx-password

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.