Type Vulnerability
This vulnerability that could allowed attackers to transfer a serialised Java SignedObject object to the remoting-based Jenkins CLI, that would be deserialised using a new ObjectInputStream…
Jenkins · Code execution
Jenkins Remote Code Execution Vulnerability
CVE-2017-1000353
What this means
This is rated critical severity (9.8 out of 10). It is on the known-exploited catalogue, which means attacks using it have already been seen. Ask IT whether Jenkins Jenkins and Oracle Communications Cloud Native Core Automated Test Suite are in your estate, and treat that as the priority.
Full vendor description
Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an unauthenticated remote code execution. An unauthenticated remote code execution vulnerability allowed attackers to transfer a serialized Java `SignedObject` object to the Jenkins CLI, that would be deserialized using a new `ObjectInputStream`, bypassing the existing blacklist-based protection mechanism. We're fixing this issue by adding `SignedObject` to the blacklist. We're also backporting the new HTTP CLI protocol from Jenkins 2.54 to LTS 2.46.2, and deprecating the remoting-based (i.e. Java serialization) CLI protocol, disabling it by default.
Scoring and exploitation
9.8/ 10
CVSS 3.1 base scoreCritical
Exploitable over the network without any account, and no one has to click or open anything. High impact on confidentiality, integrity and availability.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability
Longer bar: easier to attack
Attack vectorNetworkAV:N
Attack complexityLowAC:L
Privileges requiredNonePR:N
User interactionNoneUI:N
ScopeUnchangedS:U
Impact
Longer bar: more harm
ConfidentialityHighC:H
IntegrityHighI:H
AvailabilityHighA:H
- Elevated attack likelihood (~99.7% in 30 days)Model estimate (): a probability signal, not confirmed exploitation
- Exploited in the wild
- Yes — confirmed exploitation (US CISA )
- Not reported
- Listed product
- Jenkins
Weaknesses
CWE-502
Affected products ()
- Jenkins Jenkins
- Oracle Communications Cloud Native Core Automated Test Suite
Show the raw CPE strings (3)
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_automated_test_suite:1.9.0:*:*:*:*:*:*:*
References
11 links from the CVE record, grouped by site; the vendor's advisory comes first.
jenkins.io1 linkVendor advisory
- 2017-04-26 (opens in a new tab)Vendor Advisory
packetstormsecurity.com1 link
- Jenkins-2.56-CLI-Deserialization-Code-Execution.html (opens in a new tab)Permissions Required · Third Party Advisory · VDB Entry
securityfocus.com1 link
- 98056 (opens in a new tab)Broken Link
exploit-db.com1 link
- 41965 (opens in a new tab)Exploit · Third Party Advisory · VDB Entry
oracle.com1 link
- cpuapr2022.html (opens in a new tab)Patch · Third Party Advisory
cisa.gov1 link
- known-exploited-vulnerabilities-catalog (opens in a new tab)US Government Resource