CVE-2020-8858
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Moxa MGate 5105-MB-EIP firmware version 4.1.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Moxa MGate 5105-MB-EIP firmware version 4.1. Authentication is required to exploit this vulnerability. The specific flaw exists within the DestIP parameter within MainPing.asp. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9552.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.58% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- moxa/mgate 5105-mb-eip firmware · moxa/mgate 5105-mb-eip-t firmware
- Source
- zdi-disclosures@trendmicro.com
References
- https://www.moxa.com/en/support/support/security-advisory/mgate-5105-mb-eip-series-protocol-gateways-vulnerabilityVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-214/Third Party Advisory, VDB Entry
- https://www.moxa.com/en/support/support/security-advisory/mgate-5105-mb-eip-series-protocol-gateways-vulnerabilityVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-214/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.