SB2021042644 - Denial of service in MZ Automation lib60870.NET
Published: April 26, 2021 Updated: August 25, 2021
Security Bulletin ID
SB2021042644
CSH Severity
Medium
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Reachable Assertion (CVE-ID: CVE-2021-21778)
CWE-ID: CWE-617 - Reachable Assertion
CVSSv4: 8.7 [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]
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion in the ASDU message processing functionality. A remote attacker can send a specialy crafted request and cause a denial of service (DoS) condition on the target system.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.