A vulnerability was found in OpenPGP.js up to 4.1.2 (JavaScript Library). It has been rated as critical. This issue affects an unknown functionality of the component Cryptographic Signature Handler. The manipulation with an unknown input leads to a signature verification vulnerability. Using CWE to declare the problem leads to CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was disclosed 08/22/2019 (GitHub Repository). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2019-9153 since 02/25/2019. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries VDB-140689 and VDB-140688 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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Type

• JavaScript Library

Name

• OpenPGP.js

Version

• 4.1.0
• 4.1.1
• 4.1.2

CPE 2.3info

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CPE 2.2info

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