CVE-2019-12423 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

http://cxf.apache.org/security-advisories.data/CVE-2019-12423.txt.asc?version=1&modificationDate=1579178393000&api=v2 https://lists.apache.org/thread.html/r36e44ffc1a9b365327df62cdfaabe85b9a5637de102cea07d79b2dbf@3Ccommits.cxf.apache.org3E https://lists.apache.org/thread.html/rd49aabd984ed540c8ff7916d4d79405f3fa311d2fdbcf9ed307839a6@3Ccommits.cxf.apache.org3E https://lists.apache.org/thread.html/rd588ff96f18563aeb5f87ac8c6bce7aae86cb1a4d4be483f96e7208c@3Cannounce.apache.org3E https://lists.apache.org/thread.html/rff42cfa5e7d75b7c1af0e37589140a8f1999e578a75738740b244bd4@3Ccommits.cxf.apache.org3E https://www.oracle.com/security-alerts/cpujul2020.html https://www.oracle.com/security-alerts/cpuoct2020.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5