SB2023061533 - Multiple vulnerabilities in Proofpoint Threat Response / Threat Response Auto-Pull

Description

This security bulletin contains information about 2 vulnerabilities.

1) Inadequate Encryption Strength (CVE-ID: CVE-2023-2820)

CWE-ID: CWE-326 - Inadequate Encryption Strength

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to usage of weak encryption in the faye endpoint. A remote attacker with ability to intercept traffic can decrypt it and obtain credentials to integrated services.

2) Stored cross-site scripting (CVE-ID: CVE-2023-2819)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear

The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the Sources UI. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Remediation

Install update from vendor's website.

References

• https://www.proofpoint.com/security/security-advisories/pfpt-sa-2023-0003
• https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2023-0002