Published on: Not Yet Published

Last Modified on: 06/21/2022 03:34:00 PM UTC


Certain versions of REX640 PCL1 from ABB contain the following vulnerability:

Incorrect Permission Assignment for Critical Resource vulnerability in ABB REX640 PCL1, REX640 PCL2, REX640 PCL3 allows an authenticated attacker to launch an attack against the user database file and try to take control of an affected system node.

  • CVE-2022-1596 has been assigned by URL Logo [email protected] to track the vulnerability
  • Affected Vendor/Software: URL Logo ABB - REX640 PCL1 version <= 1.0.7
  • Affected Vendor/Software: URL Logo ABB - REX640 PCL2 version < 1.1.4
  • Affected Vendor/Software: URL Logo ABB - REX640 PCL3 version < 1.2.1
Vulnerability Patch/Work Around
  • Although these workarounds will not correct the underlying vulnerability, they can help blocking known attack vectors. • Limit the HTTP(s) and FTP(S) to a local network by a firewall • Use a next generation (OSI layer 7) firewall for blocking the traffic to the userdb.xml file • Disable remote WHMI and FTP(S) and use local HMI only

CVE References

Description Tags Link

Known Affected Software

Vendor Product Version
ABB REX640_PCL1<= 1.0.7
ABB REX640_PCL2< 1.1.4
ABB REX640_PCL3< 1.2.1

Discovery Credit

ABB thanks Paul Mader and Gianluca Raberger of VERBUND AG's OT Cyber Security Lab for helping to identify the vulnerabilities and protecting our customers.

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2022-1596 : Incorrect Permission Assignment for Critical Resource vulnerability in ABB REX640 PCL1, REX640 PCL2…… 2022-06-21 15:06:57
Reddit Logo Icon /r/netcve CVE-2022-1596 2022-06-21 16:38:39
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