Privilege escalation in Siemens products - CVE-2018-11460
Published: December 12, 2018
Vulnerability identifier: #VU16507
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-11460
CWE-ID: CWE-693
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Siemens
Affected software:
SINUMERIK 808D
SINUMERIK 840D
SINUMERIK 828D
SINUMERIK 808D
SINUMERIK 840D
SINUMERIK 828D
Detailed vulnerability description
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to protection mechanism failure. A local attacker can modify a CRAMFS archive so that after reboot, the system loads the modified CRAMFS file that can execute arbitrary code with root privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2018-11460
Update SINUMERIK 828D to version 4.7 SP6 HF1.
Update SINUMERIK 840D to version 4.7 SP6 HF5 or 4.8 SP3.
Update SINUMERIK 840D to version 4.7 SP6 HF5 or 4.8 SP3.