Vulnerability Name:

CVE-2015-5894 (CCN-106831)

Assigned:2015-09-30
Published:2015-09-30
Updated:2016-12-08
Summary:The X.509 certificate-trust implementation in Apple OS X before 10.11 does not recognize that the kSecRevocationRequirePositiveResponse flag implies a revocation-checking requirement, which makes it easier for man-in-the-middle attackers to spoof endpoints by leveraging access to a revoked certificate.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-17
Vulnerability Consequences:Other
References:Source: MITRE
Type: CNA
CVE-2015-5894

Source: APPLE
Type: Vendor Advisory
APPLE-SA-2015-09-30-3

Source: BID
Type: UNKNOWN
76908

Source: CCN
Type: BID-76908
Apple Mac OS X Prior to 10.11 Multiple Security Vulnerabilities

Source: SECTRACK
Type: UNKNOWN
1033703

Source: XF
Type: UNKNOWN
apple-macosx-cve20155894-weak-security(106831)

Source: CCN
Type: Apple Web site
Apple security updates

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT205267

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version <= 10.10.5)

    • Configuration CCN 1:
  • cpe:/o:apple:mac_os_x:10.6.8:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple mac os x *
    apple mac os x 10.6.8