CVE-2021-29242 is a high-severity improper input validation vulnerability affecting CODESYS Control Runtime systems prior to version 3.5.17.0. This flaw allows unauthenticated attackers to send specially crafted communication packets over the network, enabling them to manipulate the router's addressing scheme. Such manipulation could lead to the re-routing, addition, removal, or alteration of low-level communication packages, impacting confidentiality, integrity, and availability. While no public exploits or active exploitation have been observed, and it is not listed in CISA's KEV catalog, the vulnerability has garnered some community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 3.0, < 4.1.0.0CPE matchmatch criteria | cpe:2.3:a:codesys:control_for_beaglebone_sl:*:*:*:*:*:*:*:* | ||
>= 3.0, < 4.1.0.0CPE matchmatch criteria | cpe:2.3:a:codesys:control_for_empc-a\/imx6_sl:*:*:*:*:*:*:*:* | ||
>= 3.0, < 4.1.0.0CPE matchmatch criteria | cpe:2.3:a:codesys:control_for_iot2000_sl:*:*:*:*:*:*:*:* | ||
>= 3.0, < 4.1.0.0CPE matchmatch criteria | cpe:2.3:a:codesys:control_for_linux_arm_sl:*:*:*:*:*:*:*:* | ||
>= 3.0, < 4.1.0.0CPE matchmatch criteria | cpe:2.3:a:codesys:control_for_linux_sl:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Vulnerability in the routing protocol of the PLC runtime
May 19, 2021Vulnerability in the routing protocol of the PLC runtime
May 19, 2021Vulnerability in the routing protocol of the PLC runtime
May 19, 2021Vulnerability in the routing protocol of the PLC runtime
May 19, 2021Vulnerability in the routing protocol of the PLC runtime
May 19, 2021Vulnerability in the routing protocol of the PLC runtime
May 19, 2021