Description
Improper Verification of a Cryptographic Signature in OpenPGP.js <=4.1.2 allows an attacker to forge signed messages by replacing its signatures with a "standalone" or "timestamp" signature.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
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ZenyWay/opgp-service-cve-2019-9153 ★ 0 · Sep 11, 2019
investigate vulnerability of opgp-service to message signature bypass (CVE-2019-9153) of openpgp
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | openpgp | < 4.2.0 | 4.2.0 | GHSA-qwqc-28w3-fww6 |
References
- https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-openpgp-js/
- https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.html#download=1
- https://github.com/openpgpjs/openpgpjs/releases/tag/v4.2.0
- https://github.com/openpgpjs/openpgpjs/pull/816
- https://github.com/openpgpjs/openpgpjs/pull/797/commits/327d3e5392a6f59a4270569d200c7f7a2bfc4cbc
- http://packetstormsecurity.com/files/154191/OpenPGP.js-4.2.0-Signature-Bypass-Invalid-Curve-Attack.html