Vulnerability in Apache Synapse
CVE-2017-15708
In Apache Synapse, by default no authentication is required for Java Remote Method Invocation (RMI). So Apache Synapse 3.0.1 or all previous releases (3.0.0, 2.1.0, 2.0.0, 1.2, 1.1.2, 1.1.1) allows remote code execution attacks that can be performed by injecting specially crafted serialized objects. And the presence of Apache Commons Collections 3.2.1 (commons-collections-3.2.1.jar) or previous versions in Synapse distribution makes this exploitable. To mitigate the issue, we need to limit RMI access to trusted users only. Further upgrading to 3.0.1 version will eliminate the risk of having said Commons Collection version. In Synapse 3.0.1, Commons Collection has been updated to 3.2.2 version.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.179 (97.1th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.177 · newest: 0.179 · change: +0.001
Affected products
- Apache Synapse — versions 1.0, 1.1, 1.1.1
- Apache Software Foundation Synapse — versions 1.1.1, 1.1.2, 3.0.0
- Oracle Financial Services Market Risk Measurement And Management — versions 8.0.6, 8.0.8
- Oracle Peoplesoft Enterprise Peopletools — versions 8.56, 8.57
Weakness classification (CWE)
Public proof-of-concept exploits
- HuSoul/CVE-2017-15708
- ARPSyndicate/cvemon
- AdeliaNitzsche/Java-Deserialization-Cheat-Sheet
- BrittanyKuhn/javascript-tutorial
- GrrrDog/Java-Deserialization-Cheat-Sheet
- PalindromeLabs/Java-Deserialization-CVEs
- hucheat/APacheSynapseSimplePOC
- klausware/Java-Deserialization-Cheat-Sheet
- mishmashclone/GrrrDog-Java-Deserialization-Cheat-Sheet
- patrickwcrabtree/OpenBox
References
- www.securityfocus.com/bid/102154 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.apache.org/thread.html/77f2accf240d25d91b47033e2f8ebec84ffbc6e6627112b2f9… (mailing-list)
- www.oracle.com/security-alerts/cpujul2020.html (Third Party Advisory)
- www.oracle.com/security-alerts/cpujan2020.html (Third Party Advisory)
- lists.apache.org/thread.html/r0fb289cd38c915b9a13a3376134f96222dd9100f1ef66b416… (mailing-list)
- security.gentoo.org/glsa/202107-37 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-15708?
- CVE-2017-15708 is a critical-severity vulnerability in Apache Synapse, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.8/10. Published 2017-12-11.
- How severe is CVE-2017-15708?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-15708 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.