Vulnerability Details : CVE-2021-32639
Potential exploit
Emissary is a P2P-based, data-driven workflow engine. Emissary version 6.4.0 is vulnerable to Server-Side Request Forgery (SSRF). In particular, the `RegisterPeerAction` endpoint and the `AddChildDirectoryAction` endpoint are vulnerable to SSRF. This vulnerability may lead to credential leaks. Emissary version 7.0 contains a patch. As a workaround, disable network access to Emissary from untrusted sources.
Vulnerability category: Server-side request forgery (SSRF)
Products affected by CVE-2021-32639
- cpe:2.3:a:nsa:emissary:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-32639
0.78%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-32639
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
9.9
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
3.1
|
6.0
|
NIST | |
|
7.2
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L |
1.3
|
5.3
|
GitHub, Inc. |
CWE ids for CVE-2021-32639
-
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2021-32639
-
https://github.com/NationalSecurityAgency/emissary/blob/30c54ef16c6eb6ed09604a929939fb9f66868382/src/main/java/emissary/server/mvc/internal/RegisterPeerAction.java
emissary/RegisterPeerAction.java at 30c54ef16c6eb6ed09604a929939fb9f66868382 · NationalSecurityAgency/emissary · GitHubExploit;Third Party Advisory
-
https://github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-2p8j-2rf3-h4xr
Server-Side Request Forgery (SSRF) in emissary:emissary · Advisory · NationalSecurityAgency/emissary · GitHubExploit;Third Party Advisory
-
https://github.com/NationalSecurityAgency/emissary/blob/30c54ef16c6eb6ed09604a929939fb9f66868382/src/main/java/emissary/server/mvc/internal/AddChildDirectoryAction.java
emissary/AddChildDirectoryAction.java at 30c54ef16c6eb6ed09604a929939fb9f66868382 · NationalSecurityAgency/emissary · GitHubExploit;Third Party Advisory
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