CVE-2023-36665 — "protobuf

"protobuf.js (aka protobufjs) 6.10.0 through 7.x before 7.2.5 allows Prototype Pollution, a different vulnerability than CVE-2022-25878. A user-controlled protobuf message can be used by an attacker to pollute the prototype of Object.prototype by adding and overwriting its d

01What is this vulnerability?

"protobuf.js (aka protobufjs) 6.10.0 through 7.x before 7.2.5 allows Prototype Pollution, a different vulnerability than CVE-2022-25878. A user-controlled protobuf message can be used by an attacker to pollute the prototype of Object.prototype by adding and overwriting its data and functions. Exploitation can involve: (1) using the function parse to parse protobuf messages on the fly, (2) loading…

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

08Timeline

• Published: 2023-07-05T00:00:00.000Z
• Last modified: 2024-08-02T16:52:54.371Z

09References

• github.com — https://github.com/protobufjs/protobuf.js/compare/protobufjs-v7.2.3...protobufjs…
• github.com — https://github.com/protobufjs/protobuf.js/commit/e66379f451b0393c27d87b37fa7d271…
• www.code-intelligence.com — https://www.code-intelligence.com/blog/cve-protobufjs-prototype-pollution-cve-20…
• github.com — https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v7.2.4
• github.com — https://github.com/protobufjs/protobuf.js/pull/1899
• security.netapp.com — https://security.netapp.com/advisory/ntap-20240628-0006/