CVE-2021-31887

A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (PPC) (BACnet) (All versions), APOGEE MEC (PPC) (P2 Ethernet) (All versions), APOGEE PXC Compact (BACnet) (All versions < V3.5.4), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.19), APOGEE PXC Modular (BACnet) (All versions < V3.5.4), APOGEE PXC Modular (P2 Ethernet) (All versions = V2.3 and = V2.3 and = V2.3 and = V2.3 and = V2.3 and = V2.3 and = V2.3 and = V2.3 and = V2.3 and = V2.3 and = V2.3 and = V2.3 and = V2.3 and < V6.30.016), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus Source Code (All versions), TALON TC Compact (BACnet) (All versions < V3.5.4), TALON TC Modular (BACnet) (All versions < V3.5.4). FTP server does not properly validate the length of the “PWD/XPWD” command, leading to stack-based buffer overflows. This may result in Denial-of-Service conditions and Remote Code Execution. (FSMD-2021-0016)

Link	Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf	Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf	Vendor Advisory

Configuration 1

cpe:2.3:a:siemens:nucleus_source_code:*:*:*:*:*:*:*:* cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:* cpe:2.3:a:siemens:capital_vstar:*:*:*:*:*:*:*:* cpe:2.3:a:siemens:nucleus_readystart_v3:*:*:*:*:*:*:*:*

---

Published : 2021-11-09 12:15

Updated : 2022-05-20 01:15

---

NVD link : CVE-2021-31887

Mitre link : CVE-2021-31887

Apogee Modular Equiment Controller Firmware

Siemens

CWE-170

Improper Null Termination