CVE-2011-5009

28Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendepss 11%

from disclosure to weapon0 days

Published on NVDDec 25

1st PoCNov 30

exploitation probability

11%top 5% of all CVEs

observed exploitation

nono source reports it

2 public exploit(s)

The CmpWebServer.dll module in the Control service in 3S CoDeSys 3.4 SP4 Patch 2 allows remote attackers to cause a denial of service (NULL pointer dereference) via (1) a crafted Content-Length in an HTTP POST or (2) an invalid HTTP request method.

Affected products

n/a · n/a

public PoCs found — 2✓ VexDay Proof

exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/36378 exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/36377

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

http://aluigi.altervista.org/adv/codesys_1-adv.txt http://seclists.org/bugtraq/2011/Nov/178 http://secunia.com/advisories/47018 https://exchange.xforce.ibmcloud.com/vulnerabilities/71533 http://www.osvdb.org/77388 http://www.osvdb.org/77389 http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-336-01A.pdf