Multiple vulnerabilities in Phoenix Contact Automation Worx Software Suite
| Risk | High |
| Patch available | NO |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2020-12497 CVE-2020-12498 |
| CWE-ID | CWE-121 CWE-125 |
| Exploitation vector | Network |
| Public exploit |
Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available. |
| Vulnerable software |
PC Worx Client/Desktop applications / Other client software PC Worx Express Client/Desktop applications / Other client software |
| Vendor | Phoenix Contact GmbH |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Stack-based buffer overflow
EUVDB-ID: #VU29641
Risk: High
CVSSv4.0: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]
CVE-ID: CVE-2020-12497
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the parsing of XML files. A remote unauthenticated attacker can use a specially crafted file, trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsPC Worx: - - 1.87
PC Worx Express: - - 1.87
CPE2.3- cpe:2.3:a:phoenix_contact_gmbh:pc_worx:*:*:*:*:*:*:*:*
- cpe:2.3:a:phoenix_contact_gmbh:pc_worx:1.87:*:*:*:*:*:*:*
- cpe:2.3:a:phoenix_contact_gmbh:pc_worx_express:*:*:*:*:*:*:*:*
- cpe:2.3:a:phoenix_contact_gmbh:pc_worx_express:1.87:*:*:*:*:*:*:*
https://cert.vde.com/de-de/advisories/vde-2020-023
https://www.zerodayinitiative.com/advisories/ZDI-21-398/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
2) Out-of-bounds read
EUVDB-ID: #VU29642
Risk: Medium
CVSSv4.0: 5.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]
CVE-ID: CVE-2020-12498
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsPC Worx: - - 1.87
PC Worx Express: - - 1.87
CPE2.3- cpe:2.3:a:phoenix_contact_gmbh:pc_worx:*:*:*:*:*:*:*:*
- cpe:2.3:a:phoenix_contact_gmbh:pc_worx:1.87:*:*:*:*:*:*:*
- cpe:2.3:a:phoenix_contact_gmbh:pc_worx_express:*:*:*:*:*:*:*:*
- cpe:2.3:a:phoenix_contact_gmbh:pc_worx_express:1.87:*:*:*:*:*:*:*
https://cert.vde.com/de-de/advisories/vde-2020-023
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
