CVE-2019-9153
First published: Thu Aug 22 2019(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Openpetra | <=4.1.2 |
Remedy
https://github.com/openpgpjs/openpgpjs/pull/797/commits/327d3e5392a6f59a4270569d200c7f7a2bfc4cbc
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Reference Links
- http://packetstormsecurity.com/files/154191/OpenPGP.js-4.2.0-Signature-Bypass-Invalid-Curve-Attack.html
- https://github.com/openpgpjs/openpgpjs/pull/797/commits/327d3e5392a6f59a4270569d200c7f7a2bfc4cbc
- https://github.com/openpgpjs/openpgpjs/pull/816
- https://github.com/openpgpjs/openpgpjs/releases/tag/v4.2.0
- 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
Frequently Asked Questions
What is the severity of CVE-2019-9153?
CVE-2019-9153 is classified as a high severity vulnerability due to its potential to allow attackers to forge signatures.
How do I fix CVE-2019-9153?
To fix CVE-2019-9153, upgrade OpenPGP.js to version 4.2.0 or higher.
What kind of attack does CVE-2019-9153 enable?
CVE-2019-9153 enables attackers to forge signed messages by substituting valid signatures with unauthorized ones.
Which versions of OpenPGP.js are affected by CVE-2019-9153?
CVE-2019-9153 affects OpenPGP.js versions up to and including 4.1.2.
What is the impact of not addressing CVE-2019-9153?
Failure to address CVE-2019-9153 could lead to compromised message authenticity, allowing malicious actors to deceive users.
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