CVE-2021-22734 Security feature bypass in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior
Attackers can execute arbitrary code on Schneider homeLYnk and spaceLYnk devices by bypassing cryptographic signature verification.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-22734?
CVE-2021-22734 is a high-severity vulnerability in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior, published on 26 May 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Improper Verification of Cryptographic Signature vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior which could cause remote code execution when an attacker loads unauthorized code.
Weakness: CWE-347
Which versions are affected by CVE-2021-22734?
It affects 2 products.
Products include Schneider-Electric Homelynk Firmware, Schneider-Electric Spacelynk Firmware.
How do I fix CVE-2021-22734?
No fix has been published for CVE-2021-22734 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-22734 being exploited?
There is no known exploitation of CVE-2021-22734 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-2021-22738 Weak cryptography 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
Sources
Also known as GHSA-hxjr-hwrw-hrv5.