A flaw was found in the "Leaf and Chain" OCSP policy implementation in JSS' CryptoManager versions after 4.4.6, 4.5.3, 4.6.0, where it implicitly trusted the root certificate of a certificate chain. Applications using this policy may not properly verify the chain and could be vulnerable to attacks such as Man in the Middle.

References[email protected]/message/ENEN4DQBE6WOGEP5BQ5X62WZM7ZQEEBG/[email protected]/message/O53NXVKMF7PJCPMCJQHLMSYCUGDHGBVE/[email protected]


Source: MITRE

Published: 2019-10-14

Updated: 2019-10-25

Type: CWE-295

Risk Information

CVSS v2.0

Base Score: 5.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N

Impact Score: 4.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 7.4

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

Impact Score: 5.2

Exploitability Score: 2.2

Severity: HIGH