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CVE-2021-40843

7.3 · HIGH

Proofpoint Insider Threat Management Server contains an unsafe deserialization vulnerability in the Web Console.

Published Oct 13, 2021CWE-502EPSS 0.46%

Overview

CVE-2021-40843 is a high-severity vulnerability. It was published on October 13, 2021 and has a CVSS 3.1 base score of 7.3 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Proofpoint Insider Threat Management Server contains an unsafe deserialization vulnerability in the Web Console. An attacker with write access to the local database could cause arbitrary code to execute with SYSTEM privileges on the underlying server when a Web Console user triggers retrieval of that data. When chained with a SQL injection vulnerability, the vulnerability could be exploited remotely if Web Console users click a series of maliciously crafted URLs. All versions prior to 7.11.2 are affected.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.proofpoint.com/us/security/security-advisoriesRefwww.proofpoint.com/us/security/security-advisories/pfpt-sa-2021-0009Refwww.proofpoint.com/us/security/security-advisoriesRefwww.proofpoint.com/us/security/security-advisories/pfpt-sa-2021-0009

How CyberStrike helps

Frequently asked questions

What is CVE-2021-40843?

CVE-2021-40843 is a high-severity vulnerability. It was published on October 13, 2021 and has a CVSS 3.1 base score of 7.3 (HIGH).

How severe is CVE-2021-40843?

This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-40843?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-40843?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-40843 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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