SB2018041820 - Native Client for Red Hat Enterprise Linux 7 for Red Hat Storage and Red Hat Gluster Storage 3.3 for Red Hat Enterprise Linux 7 update for glusterfs
Published: April 18, 2018
Security Bulletin ID
SB2018041820
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Symlink attack (CVE-ID: CVE-2018-1088)
CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows an adjacent unauthenticated attacker to gain elevated privileges on the target system.
The weakness exists in the snapshot scheduler due to improper security restrictions during the mounting of gluster volumes. An adjacent attacker can access a gluster node, perform symbolic link attack that is designed to schedule malicious cronjobs and gain root privileges.
Remediation
Install update from vendor's website.