Codesys: Security Vulnerabilities
Multiple CODESYS products are affected to a buffer overflow.A low privileged remote attacker may craft a request, which can cause a buffer copy without checking the size of the service, resulting in a denial-of-service condition. User Interaction is not required.
CVSS Score
6.5
EPSS Score
0.003
Published
2022-06-24
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
0.007
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
0.003
Published
2022-04-07
The SysDrv3S driver in the CODESYS Control runtime system on Microsoft Windows allows any system user to read and write within restricted memory space.
CVSS Score
7.8
EPSS Score
0.0
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
0.013
Published
2022-04-07
Codesys Profinet in version V4.2.0.0 is prone to null pointer dereference that allows a denial of service (DoS) attack of an unauthenticated user via SNMP.
CVSS Score
7.5
EPSS Score
0.004
Published
2022-02-02
Affected versions of CODESYS Git in Versions prior to V1.1.0.0 lack certificate validation in HTTPS handshakes. CODESYS Git does not implement certificate validation by default, so it does not verify that the server provides a valid and trusted HTTPS certificate. Since the certificate of the server to which the connection is made is not properly verified, the server connection is vulnerable to a man-in-the-middle attack.
CVSS Score
7.4
EPSS Score
0.001
Published
2021-12-01