XXE in Apache Karaf
CVE-2018-11788
Apache Karaf provides a features deployer, which allows users to "hot deploy" a features XML by dropping the file directly in the deploy folder. The features XML is parsed by XMLInputFactory class. Apache Karaf XMLInputFactory class doesn't contain any mitigation codes against XXE. This is a potential security risk as an user can inject external XML entities in Apache Karaf version prior to 4.1.7 or 4.2.2. It has been fixed in Apache Karaf 4.1.7 and 4.2.2 releases.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.073 (94.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.073 · newest: 0.073 · change: 0.000
Affected products
- Apache Karaf — versions 4.2.0
- Apache Software Foundation Karaf — versions Any Apache Karaf version prior to 4.1.7 and 4.2.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- karaf.apache.org/security/cve-2018-11788.txt (Vendor Advisory)
- www.securityfocus.com/bid/106479 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-11788?
- CVE-2018-11788 is a critical-severity vulnerability in Apache Karaf, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2019-01-07.
- How severe is CVE-2018-11788?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-11788 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.