CWE Code: 264
Vulnerability Type: privilege_escalation
CVSS Score: 4.0
CWE Name:  Permissions Privileges and Access Controls
Summary: the sysrq_sysctl_handler function in kernel/sysctl.c in the linux kernel before 2.6.39 does not require the cap_sys_admin capability to modify the dmesg_restrict value, which allows local users to bypass intended access restrictions and read the kernel ring buffer by leveraging root privileges, as demonstrated by a root user in a linux containers (aka lxc) environment.
Access Authentication: NONE
Access Complexity: HIGH
Access Vector: LOCAL
Impact (C/I/A): COMPLETE/NONE/NONE
Published Date: 2012-05-24
Last Modified Date: 2012-05-29