CVE-2018-5440
A Stack-based Buffer Overflow issue was discovered in 3S-Smart CODESYS Web Server.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.10%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.10% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-121, CWE-787
- Affected
- 3s-software/codesys runtime system · 3s-software/codesys web server
- Source
- ics-cert@hq.dhs.gov
References
- http://www.securityfocus.com/bid/102909Third Party Advisory, VDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-18-032-02Third Party Advisory, US Government Resource
- http://www.securityfocus.com/bid/102909Third Party Advisory, VDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-18-032-02Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.