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CVE-2020-4045

7.5 · HIGH

SSB-DB version 20.0.0 has an information disclosure vulnerability.

Published Jun 11, 2020CWE-200EPSS 1.28%

Overview

CVE-2020-4045 is a high-severity vulnerability. It was published on June 11, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

SSB-DB version 20.0.0 has an information disclosure vulnerability. The get() method is supposed to only decrypt messages when you explicitly ask it to, but there is a bug where it's decrypting any message that it can. This means that it is returning the decrypted content of private messages, which a malicious peer could use to get access to private data. This only affects peers running [email protected] who also have private messages, and is only known to be exploitable if you're also running SSB-OOO (default in SSB-Server), which exposes a thin wrapper around get() to anonymous peers. This is fixed in version 20.0.1. Note that users of SSB-Server verion 16.0.0 should upgrade to 16.0.1 to get the fixed version of SSB-DB.

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

GitHubgithub.com/ssbc/ssb-db/commit/43334d0871c9cc6220e0f6d6338499060f7761d4GitHubgithub.com/ssbc/ssb-db/security/advisories/GHSA-mpgr-2cx9-327hGitHubgithub.com/ssbc/ssb-db/commit/43334d0871c9cc6220e0f6d6338499060f7761d4GitHubgithub.com/ssbc/ssb-db/security/advisories/GHSA-mpgr-2cx9-327h

How CyberStrike helps

Frequently asked questions

What is CVE-2020-4045?

CVE-2020-4045 is a high-severity vulnerability. It was published on June 11, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2020-4045?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-4045?

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-2020-4045?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-4045 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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