Vulnerability Name:

CCN-118362

Published:2016-10-26
Updated:2016-10-26
Summary:XNU task_t could allow a local attacker to gain elevated privileges on the system, caused by a race condition when getting a thread port for an euid 0 process. An attacker could exploit this vulnerability to gain elevated privileges.
CVSS v3 Severity:8.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.4 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:7.2 High (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Consequences:Gain Privileges
References:Source: XF
Type: UNKNOWN
xnu-taskt-priv-esc(118362)

Source: CCN
Type: XNU GIT Repository
GitHub - opensource-apple/xnu: XNU - Mac OS X kernel

Source: CCN
Type: Packet Storm Security [10-26-2016]
XNU task_t Privilege Escalation

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/o:apple:mac_os_x:10.11.5:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple mac os x 10.11.5