CVE-2019-9153

Public Exploit

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.36%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory sec-consult.com Third-Party Advisory bund.de
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-openpgp-js/ third party advisory exploit
https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.html#download=1 third party advisory
https://github.com/openpgpjs/openpgpjs/releases/tag/v4.2.0 release notes
https://github.com/openpgpjs/openpgpjs/pull/816 third party advisory
https://github.com/openpgpjs/openpgpjs/pull/797/commits/327d3e5392a6f59a4270569d200c7f7a2bfc4cbc third party advisory patch
http://packetstormsecurity.com/files/154191/OpenPGP.js-4.2.0-Signature-Bypass-Invalid-Curve-Attack.html vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2019-9153?
CVE-2019-9153 has been scored as a high severity vulnerability.
How to fix CVE-2019-9153?
To fix CVE-2019-9153, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-9153 being actively exploited in the wild?
It is possible that CVE-2019-9153 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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