Allocation of Resources Without Limits or Throttling in JTEKT Corporation products - CVE-2021-33011

Vulnerability identifier: #VU56289

CSH Severity: Low

CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2021-33011

CWE-ID: CWE-770

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

Vulnerable software:
TOYOPUC PC10G-CPU TCC-6353
TOYOPUC PC10GE TCC-6464
TOYOPUC PC10P TCC-6372
TOYOPUC PC10P-DP TCC-6726
TOYOPUC PC10P-DP-IO TCC-6752
TOYOPUC PC10B-P TCC-6373
TOYOPUC PC10B TCC-1021
TOYOPUC PC10B-E/C TCU-6521
TOYOPUC PC10E TCC-4637
TOYOPUC PC10PE TCC-1101
TOYOPUC PC10PE-1616P TCC-1102
TOYOPUC EF10 TCU-6982
TOYOPUC Plus CPU TCC-6740
TOYOPUC Plus EX TCU-6741
TOYOPUC Plus EX2 TCU-6858
TOYOPUC Plus EFR TCU-6743
TOYOPUC Plus EFR2 TCU-6859
TOYOPUC Plus 2P-EFR TCU-6929
TOYOPUC Plus BUS-EX TCU-6900
TOYOPUC PC3J/PC2J FL/ET-T-V2H THU-6289
TOYOPUC PC3J/PC2J 2PORT-EFR THU-6404
TOYOPUC Nano 10GX TUC-1157
TOYOPUC Nano CPU TUC-6941
TOYOPUC Nano 2ET TUU-6949
TOYOPUC Nano Safety TUC-1085
TOYOPUC Nano Safety RS00IP TUU-1086
TOYOPUC Nano Safety RS01IP TUU-1087

Software vendor:
JTEKT Corporation

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the affected product may not be able to properly process an ICMP flood. A remote attacker on the local network can cause a denial of service condition on the target system.

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

• https://ics-cert.us-cert.gov/advisories/icsa-21-245-02