Deserialization in Apache Olingo
CVE-2019-17556
Apache Olingo versions 4.0.0 to 4.6.0 provide the AbstractService class, which is public API, uses ObjectInputStream and doesn't check classes being deserialized. If an attacker can feed malicious metadata to the class, then it may result in running attacker's code in the worse case.
Vulnerability class: Insecure Deserialization
EPSS: 0.036 (88.3th percentile) — read the EPSS interpretation.
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.
Affected products
- Apache Olingo — versions 4.0.0 to 4.6.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (Vendor Advisory, mailing-list, x_refsource_MLIST, Mailing List)
Frequently asked questions
- What is CVE-2019-17556?
- CVE-2019-17556 is a critical-severity vulnerability in Apache Olingo, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2019-12-04.
- How severe is CVE-2019-17556?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-17556 known to be exploited?
- 26 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.