Codesys: >> Control For Beckhoff Cx9020 Security Vulnerabilities
An authenticated remote attacker can cause a null pointer dereference in the CmpSettings component of the affected CODESYS products which leads to a crash.
CVSS Score
6.5
EPSS Score
0.005
Published
2022-04-07
An authenticated, remote attacker can gain access to a dereferenced pointer contained in a request. The accesses can subsequently lead to local overwriting of memory in the CmpTraceMgr, whereby the attacker can neither gain the values read internally nor control the values to be written. If invalid memory is accessed, this results in a crash.
CVSS Score
7.1
EPSS Score
0.002
Published
2022-04-07
A remote, authenticated attacker could utilize the control program of the CODESYS Control runtime system to use the vulnerability in order to read and modify the configuration file(s) of the affected products.
CVSS Score
8.1
EPSS Score
0.001
Published
2022-04-07
An unauthenticated, remote attacker can disrupt existing communication channels between CODESYS products by guessing a valid channel ID and injecting packets. This results in the communication channel to be closed.
CVSS Score
7.5
EPSS Score
0.01
Published
2022-04-07
A bug in CmpUserMgr component can lead to only partially applied security policies. This can result in enabled, anonymous access to components part of the applied security policy.
CVSS Score
6.5
EPSS Score
0.002
Published
2022-04-07
A remote, unauthenticated attacker can send a specific crafted HTTP or HTTPS requests causing a buffer over-read resulting in a crash of the webserver of the CODESYS Control runtime system.
CVSS Score
7.5
EPSS Score
0.018
Published
2022-04-07