CVE-2018-11457 Memory corruption in SINUMERIK 828D V4.7, SINUMERIK 840D sl V4.7, SINUMERIK 840D sl V4.8
Remote attackers can execute privileged code on SINUMERIK CNC controllers via the web server if port 4842 is manually opened in the firewall.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-11457?
CVE-2018-11457 is a high-severity memory corruption vulnerability in Siemens AG SINUMERIK 828D V4.7, SINUMERIK 840D sl V4.7, SINUMERIK 840D sl V4.8, published on 12 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability has been identified in SINUMERIK 828D V4.7 (All versions < V4.7 SP6 HF1), SINUMERIK 840D sl V4.7 (All versions < V4.7 SP6 HF5), SINUMERIK 840D sl V4.8 (All versions < V4.8 SP3). The integrated web server on port 4842/tcp of the affected products could allow a remote attacker to execute code with privileged permissions on the system by sending specially crafted network requests to port 4842/tcp. Please note that this vulnerability is only exploitable if port 4842/tcp is manually opened in the firewall configuration of network port X130. The security vulnerability could be exploited by an attacker with network access to the affected devices on port 4842/tcp. Successful exploitation requires no privileges and no user interaction. The vulnerability could allow an attacker to compromise confidentiality, integrity and availability of the web server. At the time of advisory publication no public exploitation of this security vulnerability was known.
Weakness: CWE-122
Which versions are affected by CVE-2018-11457?
It affects 3 products.
Products include Siemens Sinumerik 828d V4.7 Firmware, Siemens Sinumerik 840d Sl V4.7 Firmware, Siemens Sinumerik 840d Sl V4.8 Firmware.
How do I fix CVE-2018-11457?
No fix has been published for CVE-2018-11457 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-11457 being exploited?
There is no known exploitation of CVE-2018-11457 in the wild and no public exploit code.
Other vulnerabilities in Siemens AG SINUMERIK 828D V4.7, SINUMERIK 840D sl V4.7, SINUMERIK 840D sl V4.8
Sources
Also known as GHSA-r3r8-fw5q-863c.