Heap-based buffer overflow in Siemens products - CVE-2018-11457
Published: December 11, 2018 / Updated: December 12, 2018
Vulnerability identifier: #VU16504
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-11457
CWE-ID: CWE-122
Exploitation vector: Remote 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 remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to heap-based buffer overflow when handling malicious input if Port 4842/TCP is manually opened in the firewall configuration of network Port X130. A remote unauthenticated attacker can specially crafted network requests to Port 4842/TCP, trigger memory corruption and execute arbitrary code with privileged permissions.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2018-11457
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.