Denial of service in Siemens Industrial Products

1) Memory leak

EUVDB-ID: #VU84394

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-38380

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in the webserver implementation. A remote attacker can force the application to leak memory and perform denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SIMATIC CP 1242-7 V2: All versions

SIMATIC CP 1243-1: All versions

SIMATIC CP 1243-1 DNP3: All versions

SIMATIC CP 1243-1 IEC: All versions

SIMATIC CP 1243-7 LTE: All versions

SIMATIC CP 1243-8 IRC: All versions

SIMATIC CP 1543-1: All versions

SINAMICS S210: 6.1

SIPLUS NET CP 1543-1: All versions

CPE2.3

• cpe:2.3:h:siemens:simatic_cp_1242-7_v2:*:*:*:*:*:*:*:*
• cpe:2.3:h:siemens:simatic_cp_1243-1:*:*:*:*:*:*:*:*
• cpe:2.3:h:siemens:simatic_cp_1243-1_dnp3:*:*:*:*:*:*:*:*
• cpe:2.3:h:siemens:simatic_cp_1243-1_iec:*:*:*:*:*:*:*:*
• cpe:2.3:h:siemens:simatic_cp_1243-7_lte:*:*:*:*:*:*:*:*
• cpe:2.3:h:siemens:simatic_cp_1243-8_irc:*:*:*:*:*:*:*:*
• cpe:2.3:h:siemens:simatic_cp_1543-1:*:*:*:*:*:*:*:*
• cpe:2.3:h:siemens:sinamics_s210:*:*:*:*:*:*:*:*
• cpe:2.3:h:siemens:sinamics_s210:6.1:*:*:*:*:*:*:*
• cpe:2.3:h:siemens:siplus_net_cp_1543-1:*:*:*:*:*:*:*:*

External links

https://cert-portal.siemens.com/productcert/pdf/ssa-693975.pdf

Q & A

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.