CVE-2021-31886
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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 < V2.8.19), Desigo PXC00-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC00-U (All versions >= V2.3 and < V6.30.016), Desigo PXC001-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC100-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC12-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC128-U (All versions >= V2.3 and < V6.30.016), Desigo PXC200-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC36.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC50-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC64-U (All versions >= V2.3 and < V6.30.016), Desigo PXM20-E (All versions >= 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 “USER” command, leading to stack-based buffer overflows. This may result in Denial-of-Service conditions and Remote Code Execution. (FSMD-2021-0010)
Se ha identificado una vulnerabilidad en APOGEE MBC (PPC) (BACnet) (Todas las versiones), APOGEE MBC (PPC) (P2 Ethernet) (Todas las versiones), APOGEE MEC (PPC) (BACnet) (Todas las versiones), APOGEE MEC (PPC) (P2 Ethernet) (Todas las versiones), APOGEE PXC Compact (BACnet) (Todas las versiones anteriores a V3. 5.4), APOGEE PXC Compact (P2 Ethernet) (Todas las versiones anteriores a V2.8.19), APOGEE PXC Modular (BACnet) (Todas las versiones anteriores a V3. 5.4), APOGEE PXC Modular (P2 Ethernet) (Todas las versiones anteriores a V2.8.19), Desigo PXC00-E.D (Todas las versiones posteriores o iguales a V2.3 y anteriores a V6.30.016), Desigo PXC00-U (Todas las versiones posteriores o iguales a V2.3 y anteriores a V6. 30.016), Desigo PXC001-E.D (Todas las versiones posteriores o iguales a V2.3 y anteriores a V6.30.016), Desigo PXC100-E.D (Todas las versiones posteriores o iguales a V2.3 y anteriores a V6.30.016), Desigo PXC12-E.D (Todas las versiones posteriores o iguales a V2. 3 y anteriores a V6.30.016), Desigo PXC128-U (Todas las versiones posteriores o iguales a V2.3 y anteriores a V6.30.016), Desigo PXC200-E.D (Todas las versiones posteriores o iguales a V2.3 y anteriores a V6.30.016), Desigo PXC22-E.D (Todas las versiones posteriores o iguales a V2. 3 y anteriores a V6.30.016), Desigo PXC22.1-E.D (Todas las versiones posteriores o iguales a V2.3 y anteriores a V6.30.016), Desigo PXC36.1-E.D (Todas las versiones posteriores o iguales a V2.3 y anteriores a V6.30.016), Desigo PXC50-E.D (Todas las versiones posteriores o iguales a V2. 3 y anteriores a V6.30.016), Desigo PXC64-U (Todas las versiones posteriores o iguales a V2.3 y anteriores a V6.30.016), Desigo PXM20-E (Todas las versiones posteriores o iguales a V2.3 y anteriores a V6.30.016), Nucleus NET (Todas las versiones), Nucleus ReadyStart V3 (Todas las versiones anteriores a V2017. 02.4), Nucleus Source Code (Todas las versiones), TALON TC Compact (BACnet) (Todas las versiones anteriores a V3.5.4), TALON TC Modular (BACnet) (Todas las versiones anteriores a V3.5.4). El servidor FTP no valida correctamente la longitud del comando "USER", lo que lleva a desbordamientos de búfer basados en la pila. Esto puede provocar condiciones de denegación de servicio y ejecución remota de código. (FSMD-2021-0010)
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-04-29 CVE Reserved
- 2021-11-09 CVE Published
- 2024-08-03 CVE Updated
- 2024-10-15 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-170: Improper Null Termination
- CWE-787: Out-of-bounds Write
CAPEC
References (2)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf | 2023-02-10 | |
| https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf | 2023-02-10 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Siemens Search vendor "Siemens" | Apogee Modular Building Controller Firmware Search vendor "Siemens" for product "Apogee Modular Building Controller Firmware" | * | - |
Affected
| in | Siemens Search vendor "Siemens" | Apogee Modular Building Controller Search vendor "Siemens" for product "Apogee Modular Building Controller" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Apogee Modular Equiment Controller Firmware Search vendor "Siemens" for product "Apogee Modular Equiment Controller Firmware" | * | - |
Affected
| in | Siemens Search vendor "Siemens" | Apogee Modular Equiment Controller Search vendor "Siemens" for product "Apogee Modular Equiment Controller" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Apogee Pxc Compact Firmware Search vendor "Siemens" for product "Apogee Pxc Compact Firmware" | < 2.8.19 Search vendor "Siemens" for product "Apogee Pxc Compact Firmware" and version " < 2.8.19" | p2_ethernet |
Affected
| in | Siemens Search vendor "Siemens" | Apogee Pxc Compact Search vendor "Siemens" for product "Apogee Pxc Compact" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Apogee Pxc Compact Firmware Search vendor "Siemens" for product "Apogee Pxc Compact Firmware" | < 3.5.4 Search vendor "Siemens" for product "Apogee Pxc Compact Firmware" and version " < 3.5.4" | bacnet |
Affected
| in | Siemens Search vendor "Siemens" | Apogee Pxc Compact Search vendor "Siemens" for product "Apogee Pxc Compact" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Apogee Pxc Modular Firmware Search vendor "Siemens" for product "Apogee Pxc Modular Firmware" | < 2.8.19 Search vendor "Siemens" for product "Apogee Pxc Modular Firmware" and version " < 2.8.19" | p2_ethernet |
Affected
| in | Siemens Search vendor "Siemens" | Apogee Pxc Modular Search vendor "Siemens" for product "Apogee Pxc Modular" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Apogee Pxc Modular Firmware Search vendor "Siemens" for product "Apogee Pxc Modular Firmware" | < 3.5.4 Search vendor "Siemens" for product "Apogee Pxc Modular Firmware" and version " < 3.5.4" | bacnet |
Affected
| in | Siemens Search vendor "Siemens" | Apogee Pxc Modular Search vendor "Siemens" for product "Apogee Pxc Modular" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Talon Tc Compact Firmware Search vendor "Siemens" for product "Talon Tc Compact Firmware" | < 3.5.4 Search vendor "Siemens" for product "Talon Tc Compact Firmware" and version " < 3.5.4" | - |
Affected
| in | Siemens Search vendor "Siemens" | Talon Tc Compact Search vendor "Siemens" for product "Talon Tc Compact" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Talon Tc Modular Firmware Search vendor "Siemens" for product "Talon Tc Modular Firmware" | < 3.5.4 Search vendor "Siemens" for product "Talon Tc Modular Firmware" and version " < 3.5.4" | - |
Affected
| in | Siemens Search vendor "Siemens" | Talon Tc Modular Search vendor "Siemens" for product "Talon Tc Modular" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Desigo Pxc00-e.d Firmware Search vendor "Siemens" for product "Desigo Pxc00-e.d Firmware" | >= 2.3 < 6.30.016 Search vendor "Siemens" for product "Desigo Pxc00-e.d Firmware" and version " >= 2.3 < 6.30.016" | - |
Affected
| in | Siemens Search vendor "Siemens" | Desigo Pxc00-e.d Search vendor "Siemens" for product "Desigo Pxc00-e.d" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Desigo Pxc00-u Firmware Search vendor "Siemens" for product "Desigo Pxc00-u Firmware" | >= 2.3 < 6.30.016 Search vendor "Siemens" for product "Desigo Pxc00-u Firmware" and version " >= 2.3 < 6.30.016" | - |
Affected
| in | Siemens Search vendor "Siemens" | Desigo Pxc00-u Search vendor "Siemens" for product "Desigo Pxc00-u" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Desigo Pxc001-e.d Firmware Search vendor "Siemens" for product "Desigo Pxc001-e.d Firmware" | >= 2.3 < 6.30.016 Search vendor "Siemens" for product "Desigo Pxc001-e.d Firmware" and version " >= 2.3 < 6.30.016" | - |
Affected
| in | Siemens Search vendor "Siemens" | Desigo Pxc001-e.d Search vendor "Siemens" for product "Desigo Pxc001-e.d" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Desigo Pxc12-e.d Firmware Search vendor "Siemens" for product "Desigo Pxc12-e.d Firmware" | >= 2.3 < 6.30.016 Search vendor "Siemens" for product "Desigo Pxc12-e.d Firmware" and version " >= 2.3 < 6.30.016" | - |
Affected
| in | Siemens Search vendor "Siemens" | Desigo Pxc12-e.d Search vendor "Siemens" for product "Desigo Pxc12-e.d" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Desigo Pxc22-e.d Firmware Search vendor "Siemens" for product "Desigo Pxc22-e.d Firmware" | >= 2.3 < 6.30.016 Search vendor "Siemens" for product "Desigo Pxc22-e.d Firmware" and version " >= 2.3 < 6.30.016" | - |
Affected
| in | Siemens Search vendor "Siemens" | Desigo Pxc22-e.d Search vendor "Siemens" for product "Desigo Pxc22-e.d" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Desigo Pxc22.1-e.d Firmware Search vendor "Siemens" for product "Desigo Pxc22.1-e.d Firmware" | >= 2.3 < 6.30.016 Search vendor "Siemens" for product "Desigo Pxc22.1-e.d Firmware" and version " >= 2.3 < 6.30.016" | - |
Affected
| in | Siemens Search vendor "Siemens" | Desigo Pxc22.1-e.d Search vendor "Siemens" for product "Desigo Pxc22.1-e.d" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Desigo Pxc36.1-e.d Firmware Search vendor "Siemens" for product "Desigo Pxc36.1-e.d Firmware" | >= 2.3 < 6.30.016 Search vendor "Siemens" for product "Desigo Pxc36.1-e.d Firmware" and version " >= 2.3 < 6.30.016" | - |
Affected
| in | Siemens Search vendor "Siemens" | Desigo Pxc36.1-e.d Search vendor "Siemens" for product "Desigo Pxc36.1-e.d" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Desigo Pxc50-e.d Firmware Search vendor "Siemens" for product "Desigo Pxc50-e.d Firmware" | >= 2.3 < 6.30.016 Search vendor "Siemens" for product "Desigo Pxc50-e.d Firmware" and version " >= 2.3 < 6.30.016" | - |
Affected
| in | Siemens Search vendor "Siemens" | Desigo Pxc50-e.d Search vendor "Siemens" for product "Desigo Pxc50-e.d" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Desigo Pxc64-u Firmware Search vendor "Siemens" for product "Desigo Pxc64-u Firmware" | >= 2.3 < 6.30.016 Search vendor "Siemens" for product "Desigo Pxc64-u Firmware" and version " >= 2.3 < 6.30.016" | - |
Affected
| in | Siemens Search vendor "Siemens" | Desigo Pxc64-u Search vendor "Siemens" for product "Desigo Pxc64-u" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Desigo Pxc100-e.d Firmware Search vendor "Siemens" for product "Desigo Pxc100-e.d Firmware" | >= 2.3 < 6.30.016 Search vendor "Siemens" for product "Desigo Pxc100-e.d Firmware" and version " >= 2.3 < 6.30.016" | - |
Affected
| in | Siemens Search vendor "Siemens" | Desigo Pxc100-e.d Search vendor "Siemens" for product "Desigo Pxc100-e.d" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Desigo Pxc128-u Firmware Search vendor "Siemens" for product "Desigo Pxc128-u Firmware" | >= 2.3 < 6.30.016 Search vendor "Siemens" for product "Desigo Pxc128-u Firmware" and version " >= 2.3 < 6.30.016" | - |
Affected
| in | Siemens Search vendor "Siemens" | Desigo Pxc128-u Search vendor "Siemens" for product "Desigo Pxc128-u" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Desigo Pxc200-e.d Firmware Search vendor "Siemens" for product "Desigo Pxc200-e.d Firmware" | >= 2.3 < 6.30.016 Search vendor "Siemens" for product "Desigo Pxc200-e.d Firmware" and version " >= 2.3 < 6.30.016" | - |
Affected
| in | Siemens Search vendor "Siemens" | Desigo Pxc200-e.d Search vendor "Siemens" for product "Desigo Pxc200-e.d" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Desigo Pxm20-e Firmware Search vendor "Siemens" for product "Desigo Pxm20-e Firmware" | >= 2.3 < 6.30.016 Search vendor "Siemens" for product "Desigo Pxm20-e Firmware" and version " >= 2.3 < 6.30.016" | - |
Affected
| in | Siemens Search vendor "Siemens" | Desigo Pxm20-e Search vendor "Siemens" for product "Desigo Pxm20-e" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Nucleus Net Search vendor "Siemens" for product "Nucleus Net" | * | - |
Affected
| ||||||
| Siemens Search vendor "Siemens" | Nucleus Readystart V3 Search vendor "Siemens" for product "Nucleus Readystart V3" | < 2017.02.4 Search vendor "Siemens" for product "Nucleus Readystart V3" and version " < 2017.02.4" | - |
Affected
| ||||||
| Siemens Search vendor "Siemens" | Nucleus Source Code Search vendor "Siemens" for product "Nucleus Source Code" | * | - |
Affected
| ||||||