CVE-2017-20189

moderate-risk
Published 2024-01-22

In Clojure before 1.9.0, classes can be used to construct a serialized object that executes arbitrary code upon deserialization. This is relevant if a server deserializes untrusted objects.

Do I need to act?

~
3.4% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: 841fa60b41bc74367fb16ec65d025ea5bde7a617, 271674c9b484d798484d134a5ac40a6df15d3ac3
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Clojure

Affected Vendors

Clojure

References (11)

Exploit https://clojure.atlassian.net/browse/CLJ-2204
Patch https://github.com/clojure/clojure/commit/271674c9b484d798484d134a5ac40a6df15d3a...
Patch https://github.com/frohoff/ysoserial/pull/68/files
Exploit https://hackmd.io/%40fe1w0/HyefvRQKp
Patch https://security.snyk.io/vuln/SNYK-JAVA-ORGCLOJURE-5740378
Exploit https://clojure.atlassian.net/browse/CLJ-2204
Patch https://github.com/clojure/clojure/commit/271674c9b484d798484d134a5ac40a6df15d3a...
Patch https://github.com/frohoff/ysoserial/pull/68/files
Exploit https://hackmd.io/%40fe1w0/HyefvRQKp
https://security.netapp.com/advisory/ntap-20241108-0002/
Patch https://security.snyk.io/vuln/SNYK-JAVA-ORGCLOJURE-5740378
44
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 7/34 · Low
Exposure 5/34 · Minimal