Multiple vulnerabilities in Allen-Bradley Flex IO 1794-AENT/B
| Risk | Medium |
| Patch available | NO |
| Number of vulnerabilities | 6 |
| CVE-ID | CVE-2020-6083 CVE-2020-6084 CVE-2020-6085 CVE-2020-6086 CVE-2020-6087 CVE-2020-6088 |
| CWE-ID | CWE-119 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Flex IO 1794-AENT/B Hardware solutions / Firmware |
| Vendor | Rockwell Automation |
Security Bulletin
This security bulletin contains information about 6 vulnerabilities.
Updated 03.02.2021
Added vulnerability #6
1) Buffer overflow
EUVDB-ID: #VU47640
Risk: Medium
CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2020-6083
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the ENIP Request Path Port Segment functionality. A remote attacker can send a specially crafted network request, trigger memory corruption and cause a denial of service condition on the target system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsFlex IO 1794-AENT/B: 4.003
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1005
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) Buffer overflow
EUVDB-ID: #VU47641
Risk: Medium
CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2020-6084
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the ENIP Request Path Logical Segment functionality. A remote attacker can send an Electronic Key Segment with less bytes than required by the Key Format Table following the Key Format field, trigger memory corruption and cause a denial of service condition on the target system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsFlex IO 1794-AENT/B: 4.003
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1006
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) Buffer overflow
EUVDB-ID: #VU47642
Risk: Medium
CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2020-6085
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the ENIP Request Path Logical Segment functionality. A remote attacker can send an Electronic Key Segment with less than 0x18 bytes following the Key Format field, trigger memory corruption and cause a denial of service condition on the target system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsFlex IO 1794-AENT/B: 4.003
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1006
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) Buffer overflow
EUVDB-ID: #VU47643
Risk: Medium
CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2020-6086
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the ENIP Request Path Data Segment functionality. A remote attacker can suply the Simple Segment Sub-Type, trigger memory corruption and cause a denial of service condition on the target system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsFlex IO 1794-AENT/B: 4.003
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1007
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.
5) Buffer overflow
EUVDB-ID: #VU47644
Risk: Medium
CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2020-6087
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the ENIP Request Path Data Segment functionality. A remote attacker can suply the ANSI Extended Symbol Segment Sub-Type, trigger memory corruption and cause a denial of service condition on the target system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsFlex IO 1794-AENT/B: 4.003
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1007
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.
6) Buffer overflow
EUVDB-ID: #VU50272
Risk: Medium
CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2020-6088
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the ENIP Request Path Network Segment functionality. A remote attacker can suply the ANSI Extended Symbol Segment Sub-Type, trigger memory corruption and cause a denial of service condition on the target system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsFlex IO 1794-AENT/B: 4.003
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1008
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.
