Vulnerability Details : CVE-2019-9155
A cryptographic issue in OpenPGP.js <=4.2.0 allows an attacker who is able provide forged messages and gain feedback about whether decryption of these messages succeeded to conduct an invalid curve attack in order to gain the victim's ECDH private key.
Exploit prediction scoring system (EPSS) score for CVE-2019-9155
Probability of exploitation activity in the next 30 days: 2.75%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 90 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2019-9155
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
NIST |
|
5.9
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
2.2
|
3.6
|
NIST |
CWE ids for CVE-2019-9155
-
The product uses a broken or risky cryptographic algorithm or protocol.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-9155
-
https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.html#download=1
BSI - Publications - Mailvelope Extensions Security AuditThird Party Advisory
-
https://github.com/openpgpjs/openpgpjs/releases/tag/v4.3.0
Release v4.3.0 - Security Release · openpgpjs/openpgpjs · GitHubRelease Notes
-
http://packetstormsecurity.com/files/154191/OpenPGP.js-4.2.0-Signature-Bypass-Invalid-Curve-Attack.html
OpenPGP.js 4.2.0 Signature Bypass / Invalid Curve Attack ≈ Packet StormThird Party Advisory;VDB Entry
-
https://github.com/openpgpjs/openpgpjs/pull/853/commits/7ba4f8c655e7fd7706e8d7334e44b40fdf56c43e
Fix ECDH message encryption for some session keys by twiss · Pull Request #853 · openpgpjs/openpgpjs · GitHubPatch;Third Party Advisory
-
https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-openpgp-js/
Multiple Vulnerabilities in OpenPGP.js – SEC ConsultExploit;Third Party Advisory
-
https://github.com/openpgpjs/openpgpjs/pull/853
Fix ECDH message encryption for some session keys by twiss · Pull Request #853 · openpgpjs/openpgpjs · GitHubThird Party Advisory
Products affected by CVE-2019-9155
- cpe:2.3:a:openpgpjs:openpgpjs:*:*:*:*:*:*:*:*