In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer dereference with an invalid address can occur. This leads to a denial of service situation.
References
| Link | Resource |
|---|---|
| https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16876&token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7&download= | Vendor Advisory |
| https://www.tenable.com/security/research/tra-2021-47 | Exploit Third Party Advisory |
Configurations
History
17 Nov 2021, 22:18
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-252 |
10 Nov 2021, 01:17
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-754 |
04 Nov 2021, 10:15
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-252 |
28 Oct 2021, 18:04
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : 5.0
v3 : 7.5 |
| CPE | cpe:2.3:a:codesys:codesys:*:*:*:*:*:*:*:* | |
| References | (MISC) https://www.tenable.com/security/research/tra-2021-47 - Exploit, Third Party Advisory | |
| References | (CONFIRM) https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16876&token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7&download= - Vendor Advisory |
26 Oct 2021, 20:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
26 Oct 2021, 11:40
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2021-10-26 10:15
Updated : 2023-12-10 14:09
NVD link : CVE-2021-34585
Mitre link : CVE-2021-34585
CVE.ORG link : CVE-2021-34585
JSON object : View
Products Affected
codesys
- codesys
CWE
CWE-252
Unchecked Return Value