Vulnerability in Togatech Tenvoy
CVE-2021-32685
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`.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (49.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Togatech Tenvoy — versions < 7.0.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/TogaTech/tEnvoy/security/advisories/GHSA-7r96-8g3x-g36m (Third Party Advisory)
- github.com/TogaTech/tEnvoy/commit/a121b34a45e289d775c62e58841522891dee686b (Patch, Third Party Advisory)
- github.com/TogaTech/tEnvoy/releases/tag/v7.0.3 (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2021-32685?
- CVE-2021-32685 is a critical-severity vulnerability in Togatech Tenvoy, classified under Improper Verification of Cryptographic Signature. CVSS score: 9.8/10. Published 2021-06-16.
- How severe is CVE-2021-32685?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-32685 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.