Deserialization in Nationalsecurityagency Emissary
CVE-2021-32634
Emissary is a distributed, peer-to-peer, data-driven workflow framework. Emissary 6.4.0 is vulnerable to Unsafe Deserialization of post-authenticated requests to the [`WorkSpaceClientEnqueue.action`](https://github.com/NationalSecurityAgency/emissary/blob/30c54ef16c6eb6ed09604a929939fb9f66868382/src/main/java/emissary/server/mvc/internal/WorkSpaceClientEnqueueAction.java) REST endpoint. This issue may lead to post-auth Remote Code Execution. This issue has been patched in version 6.5.0. As a workaround, one can disable network access to Emissary from untrusted sources.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:H.
EPSS exploit prediction
EPSS: 0.013 (68.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Nationalsecurityagency Emissary — versions < 6.5.0
- Nsa Emissary — versions 6.4.0
Weakness classification (CWE)
References
- github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-m5qf-gfmp-7… (Third Party Advisory)
- github.com/NationalSecurityAgency/emissary/commit/40260b1ec1f76cc92361702cc14fa… (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-32634?
- CVE-2021-32634 is a high-severity vulnerability in Nationalsecurityagency Emissary, classified under Deserialization of Untrusted Data. CVSS score: 7.2/10. Published 2021-05-21.
- How severe is CVE-2021-32634?
- High severity. CVSS v3 base score is 7.2 out of 10.