CVE-2021-22738 Weak cryptography in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior
Weak cryptography in homeLYnk and spaceLYnk allows attackers to gain unauthorized access via brute force attacks on credentials.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-22738?
CVE-2021-22738 is a critical vulnerability in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior, published on 26 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Use of a Broken or Risky Cryptographic Algorithm vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior that could cause unauthorized access when credentials are discovered after a brute force attack.
Weakness: CWE-327
Which versions are affected by CVE-2021-22738?
It affects 2 products.
Products include Schneider-Electric Homelynk Firmware, Schneider-Electric Spacelynk Firmware.
How do I fix CVE-2021-22738?
No fix has been published for CVE-2021-22738 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-22738 being exploited?
There is no known exploitation of CVE-2021-22738 in the wild and no public exploit code.
Other vulnerabilities in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior
- CVE-2021-22737 Hardcoded credentials in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior
- CVE-2021-22732 Privilege escalation in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior
- CVE-2021-22733 Privilege escalation in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior
- CVE-2021-22736 Path traversal in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior
- CVE-2018-7779 Auth bypass in Wiser for KNX
Sources
Also known as GHSA-2vxv-gxpx-wc5c.