Overview
- Description
- A Stack-based Buffer Overflow issue was discovered in 3S-Smart CODESYS Web Server. Specifically: all Microsoft Windows (also WinCE) based CODESYS web servers running stand-alone Version 2.3, or as part of the CODESYS runtime system running prior to Version V1.1.9.19. A crafted request may cause a buffer overflow and could therefore execute arbitrary code on the web server or lead to a denial-of-service condition due to a crash in the web server.
- Source
- ics-cert@hq.dhs.gov
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 9.8
- Impact score
- 5.9
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- CRITICAL
CVSS 2.0
- Type
- Primary
- Base score
- 7.5
- Impact score
- 6.4
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:P/I:P/A:P
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:3s-software:codesys_runtime_system:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B75FDB8D-51F3-43D4-B2ED-990F0ED9CC17",
"versionEndExcluding": "1.1.9.19"
},
{
"criteria": "cpe:2.3:a:3s-software:codesys_web_server:2.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0F918177-556A-494A-A524-D4FEEF8CBE20"
}
],
"operator": "OR"
}
]
}
]