Veracode Vulnerability DatabaseVERACODE:27124Authorization Bypass
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:N/I:P/A:N
busybox is vulnerable to authorization bypass. The add_probe function in modutils/modprobe.c allows local users to bypass intended restrictions by loading kernel modules via a / character in the module name, as demonstrated by an ifconfig /usbserial up command or a mount -t /snd_pcm none / command.
| CPE | Name | Operator | Version |
|---|---|---|---|
| busybox:trusty | eq | 1:1.21.0-1ubuntu1 | |
| busybox:trusty | eq | 1:1.21.0-1ubuntu1 |
References
git.busybox.net/busybox/commit/?id=4e314faa0aecb66717418e9a47a4451aec59262b
openwall.com/lists/oss-security/2015/01/24/4
www.securityfocus.com/bid/72324
bugs.busybox.net/show_bug.cgi?id=7652
bugzilla.redhat.com/show_bug.cgi?id=1185707
lists.debian.org/debian-lts-announce/2018/07/msg00037.html
plus.google.com/+MathiasKrause/posts/PqFCo4bfrWu
security.gentoo.org/glsa/201503-13
usn.ubuntu.com/3935-1/
Related
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:N/I:P/A:N