Multiple vulnerabilities in PHOENIX CONTACT Automation Worx Software Suite

Published: 2019-10-30 | Updated: 2019-10-30
Severity High
Patch available NO
Number of vulnerabilities 4
CVE ID CVE-2019-16675
CVE-2019-12871
CVE-2019-12870
CVE-2019-12869
CWE ID CWE-20
CWE-416
CWE-824
CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software Config+ Subscribe
PC Worx Express
PC Worx
Vendor Phoenix Contact GmbH

Security Advisory

1) Input validation error

Severity: High

CVSSv3: 8.1 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C] [PCI]

CVE-ID: CVE-2019-16675

CWE-ID: CWE-20 - Improper Input Validation

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted PC Worx or Config+ project file and execute arbitrary code on the target system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Config+: -, 1.86

PC Worx Express: -, 1.86

PC Worx: -, 1.86

CPE External links

https://ics-cert.us-cert.gov/advisories/icsa-19-302-01

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.

2) Use-after-free

Severity: High

CVSSv3: 8.1 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C] [PCI]

CVE-ID: CVE-2019-12871

CWE-ID: CWE-416 - Use After Free

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when parsing the BCP files. A remote attacker can exchange the original PC Worx or Config+ project file with the manipulated one on the application programming workstation and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Config+: -, 1.86

PC Worx Express: -, 1.86

PC Worx: -, 1.86

CPE External links

https://cert.vde.com/en-us/advisories/vde-2019-014
https://www.zerodayinitiative.com/advisories/ZDI-19-578/

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.

3) Access of Uninitialized Pointer

Severity: High

CVSSv3: 8.1 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C] [PCI]

CVE-ID: CVE-2019-12870

CWE-ID: CWE-824 - Access of Uninitialized Pointer

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to access of uninitialized pointer when parsing the BCP files. A remote attacker can exchange the original PC Worx or Config+ project file with the manipulated one on the application programming workstation and execute arbitrary code on the target system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Config+: -, 1.86

PC Worx Express: -, 1.86

PC Worx: -, 1.86

CPE External links

https://cert.vde.com/en-us/advisories/vde-2019-014
https://www.zerodayinitiative.com/advisories/ZDI-19-575/

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.

4) Out-of-bounds read

Severity: Medium

CVSSv3: 4 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-12869

CWE-ID: CWE-125 - Out-of-bounds Read

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when parsing the BCP files. A remote attacker can exchange the original PC Worx or Config+ project file with the manipulated one on the application programming workstation, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Config+: -, 1.86

PC Worx Express: -, 1.86

PC Worx: -, 1.86

CPE External links

https://cert.vde.com/en-us/advisories/vde-2019-014
https://www.zerodayinitiative.com/advisories/ZDI-19-579/

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.