Ubuntu.comUB:CVE-2016-7032CVE-2016-7032
6.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
7 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
0.0004 Low
EPSS
Percentile
5.1%
sudo_noexec.so in Sudo before 1.8.15 on Linux might allow local users to
bypass intended noexec command restrictions via an application that calls
the (1) system or (2) popen function.
Notes
| Author | Note |
|---|---|
| seth-arnold | I’m marking this negligible because this feature seems doomed to failure in the general case. Any sort of memory-protection flaws in the target process, or ability to execute system calls directly, or programs that don’t use the standard C libraries, etc. won’t be affected by this feature. If you rely upon this feature I suggest instead seccomp2-based filters to disable the execve() and execveat() system calls at the kernel interface or AppArmor (or other MAC system) to restrict which executables can be executed. |
References
launchpad.net/bugs/cve/CVE-2016-7032
nvd.nist.gov/vuln/detail/CVE-2016-7032
security-tracker.debian.org/tracker/CVE-2016-7032
ubuntu.com/security/notices/USN-3968-3
www.cve.org/CVERecord?id=CVE-2016-7032
www.sudo.ws/alerts/noexec_bypass.html
www.sudo.ws/devel.html#1.8.15rc1
www.sudo.ws/repos/sudo/rev/58a5c06b5257
www.sudo.ws/repos/sudo/rev/a826cd7787e9
Related
6.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
7 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
0.0004 Low
EPSS
Percentile
5.1%