Vulnerability in Apache Cxf
CVE-2019-12423
Apache CXF ships with a OpenId Connect JWK Keys service, which allows a client to obtain the public keys in JWK format, which can then be used to verify the signature of tokens issued by the service. Typically, the service obtains the public key from a local keystore (JKS/PKCS12) by specifing the path of the keystore and the alias of the keystore entry. This case is not vulnerable. However it is also possible to obtain the keys from a JWK keystore file, by setting the configuration parameter "rs.security.keystore.type" to "jwk". For this case all keys are returned in this file "as is", including all private key and secret key credentials. This is an obvious security risk if the user has configured the signature keystore file with private or secret key credentials. From CXF 3.3.5 and 3.2.12, it is mandatory to specify an alias corresponding to the id of the key in the JWK file, and only this key is returned. In addition, any private key information is omitted by default. "oct" keys, which contain secret keys, are not returned at all.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.061 (93.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.061 · newest: 0.061 · change: 0.000
Affected products
- Apache Cxf — versions All versions of Apache CXF prior to 3.3.5 and 3.2.12.
- Oracle Commerce Guided Search — versions 11.3.2
- Oracle Communications Diameter Signaling Router
- Oracle Communications Element Manager
- Oracle Communications Session Report Manager
- Oracle Communications Session Route Manager — versions 8.1.1, 8.2.0, 8.2.1
- Oracle Flexcube Private Banking — versions 12.0.0, 12.1.0
- Oracle Retail Order Broker — versions 15.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/rd588ff96f18563aeb5f87ac8c6bce7aae86cb1a4d4be483f9… (mailing-list)
- lists.apache.org/thread.html/r36e44ffc1a9b365327df62cdfaabe85b9a5637de102cea07d… (mailing-list)
- lists.apache.org/thread.html/rff42cfa5e7d75b7c1af0e37589140a8f1999e578a75738740… (mailing-list)
- www.oracle.com/security-alerts/cpujul2020.html (Patch, Third Party Advisory)
- cxf.apache.org/security-advisories.data/CVE-2019-12423.txt.asc (Vendor Advisory)
- www.oracle.com/security-alerts/cpuoct2020.html (Patch, Third Party Advisory)
- lists.apache.org/thread.html/rd49aabd984ed540c8ff7916d4d79405f3fa311d2fdbcf9ed3… (mailing-list)
- lists.apache.org/thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba71394f0d… (mailing-list)
- www.oracle.com/security-alerts/cpuApr2021.html (Patch, Third Party Advisory)
- lists.apache.org/thread.html/rfb87e0bf3995e7d560afeed750fac9329ff5f1ad49da36512… (mailing-list)
Frequently asked questions
- What is CVE-2019-12423?
- CVE-2019-12423 is a high-severity vulnerability in Apache Cxf, classified under Insufficiently Protected Credentials. CVSS score: 7.5/10. Published 2020-01-16.
- How severe is CVE-2019-12423?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-12423 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.