Vulnerability identifier: #VU66369
Vulnerability risk: Medium
CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]
CVE-ID:
CWE-ID:
CWE-770
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
SCALANCE M-800 / S615
Hardware solutions /
Firmware
SCALANCE W-700 (IEEE 802.11ax)
Hardware solutions /
Firmware
SCALANCE W-700 (IEEE 802.11n)
Hardware solutions /
Firmware
SCALANCE W-1700 (IEEE 802.11ac)
Hardware solutions /
Firmware
SCALANCE XB-200
Hardware solutions /
Routers & switches, VoIP, GSM, etc
SCALANCE XC-200
Hardware solutions /
Routers & switches, VoIP, GSM, etc
SCALANCE XF-200BA
Hardware solutions /
Routers & switches, VoIP, GSM, etc
SCALANCE XM-400
Hardware solutions /
Routers & switches, VoIP, GSM, etc
SCALANCE XP-200
Hardware solutions /
Routers & switches, VoIP, GSM, etc
SCALANCE XR-300WG
Hardware solutions /
Routers & switches, VoIP, GSM, etc
SCALANCE XR-500
Hardware solutions /
Routers & switches, VoIP, GSM, etc
Vendor: Siemens
Description
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to the affected devices do not properly handle the renegotiation of SSL/TLS parameters. A remote attacker can bypass the TCP brute force prevention and cause a denial of service condition on the target system.
Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versions
SCALANCE M-800 / S615: All versions
SCALANCE W-700 (IEEE 802.11ax): All versions
SCALANCE W-700 (IEEE 802.11n): All versions
SCALANCE W-1700 (IEEE 802.11ac): All versions
SCALANCE XB-200: All versions
SCALANCE XC-200: All versions
SCALANCE XF-200BA: All versions
SCALANCE XM-400: All versions
SCALANCE XP-200: All versions
SCALANCE XR-300WG: All versions
SCALANCE XR-500: All versions
External links
http://cert-portal.siemens.com/productcert/txt/ssa-710008.txt
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.