Vulnerability identifier: #VU52204
Vulnerability risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-170
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
SIMOTICS CONNECT 400
Hardware solutions /
Other hardware appliances
Vendor:
Description
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the DNS domain name label parsing functionality does not properly validate the null-terminated name in DNS-responses. A remote attacker can cause a denial of service condition or leak the read memory.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
External links
http://ics-cert.us-cert.gov/advisories/icsa-21-103-13
http://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.