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.

CVSS v3.0 5.9 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.9^/10

CVSS v3.0 : MEDIUM

Vector : AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:N/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://github.com/openpgpjs/openpgpjs/pull/853	Third Party Advisory
https://github.com/openpgpjs/openpgpjs/releases/tag/v4.3.0	Release Notes
https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.html#download=1	Third Party Advisory
https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-openpgp-js/	Exploit Third Party Advisory
https://github.com/openpgpjs/openpgpjs/pull/853/commits/7ba4f8c655e7fd7706e8d7334e44b40fdf56c43e	Patch Third Party Advisory
http://packetstormsecurity.com/files/154191/OpenPGP.js-4.2.0-Signature-Bypass-Invalid-Curve-Attack.html	Third Party Advisory VDB Entry

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Configurations

Configuration 1 (hide)

cpe:2.3:a:openpgpjs:openpgpjs:*:*:*:*:*:*:*:*

Information

Published : 2019-08-22 09:15

Updated : 2021-07-21 04:39

NVD link : CVE-2019-9155

Mitre link : CVE-2019-9155

JSON object : View

CWE

CWE-327

Use of a Broken or Risky Cryptographic Algorithm

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Products Affected

openpgpjs

openpgpjs

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