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TITLE:
CoDeSys Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA47018

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/47018/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=47018

RELEASE DATE:
2011-12-01

DISCUSS ADVISORY:
http://secunia.com/advisories/47018/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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 * Criticality Level
 * Impact
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 * CVE Reference(s)

http://secunia.com/advisories/47018/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=47018

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http://secunia.com/vulnerability_scanning/personal/
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DESCRIPTION:
Luigi Auriemma has discovered multiple vulnerabilities in CoDeSys,
which can be exploited by malicious people to cause a DoS (Denial of
Service) and compromise a vulnerable system.

1) An integer overflow error in the Gateway service when processing
certain requests can be exploited to cause a heap-based buffer
overflow via a specially crafted packet sent to TCP port 1217.

2) A boundary error in the Control service when processing web
requests can be exploited to cause a stack-based buffer overflow via
an overly long URL sent to TCP port 8080.

3) A NULL pointer dereference error in the CmbWebserver.dll module of
the Control service when processing HTTP POST requests can be
exploited to deny processing further requests via a specially crafted
"Content-Length" header sent to TCP port 8080.

4) A second NULL pointer dereference error in the CmbWebserver.dll
module of the Control service when processing web requests can be
exploited to deny processing further requests by sending a request
with an unknown HTTP method to TCP port 8080.

5) An error in the Control service when processing web requests
containing a non-existent directory can be exploited to create
arbitrary directories within the webroot via requests sent to TCP
port 8080.

Successful exploitation of vulnerabilities #1 and #2 allows execution
of arbitrary code.

The vulnerabilities are confirmed in version 3.4 SP4 Patch 2. Other
versions may also be affected.

SOLUTION:
Restrict access to trusted hosts only.

PROVIDED AND/OR DISCOVERED BY:
Luigi Auriemma

ORIGINAL ADVISORY:
http://aluigi.altervista.org/adv/codesys_1-adv.txt

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
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http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
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EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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