Vulnerability CVE-2021-32685


Published: 2021-06-16

Description:
tEnvoy contains the PGP, NaCl, and PBKDF2 in node.js and the browser (hashing, random, encryption, decryption, signatures, conversions), used by TogaTech.org. In versions prior to 7.0.3, the `verifyWithMessage` method of `tEnvoyNaClSigningKey` always returns `true` for any signature that has a SHA-512 hash matching the SHA-512 hash of the message even if the signature was invalid. This issue is patched in version 7.0.3. As a workaround: In `tenvoy.js` under the `verifyWithMessage` method definition within the `tEnvoyNaClSigningKey` class, ensure that the return statement call to `this.verify` ends in `.verified`.

Type:

CWE-347

(Improper Verification of Cryptographic Signature)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Togatech -> Tenvoy 

 References:
https://github.com/TogaTech/tEnvoy/releases/tag/v7.0.3
https://github.com/TogaTech/tEnvoy/commit/a121b34a45e289d775c62e58841522891dee686b
https://github.com/TogaTech/tEnvoy/security/advisories/GHSA-7r96-8g3x-g36m

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