CVE-2019-10921

Siemens LOGO! 8 Recoverable Password Format

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). Unencrypted storage of passwords in the project could allow an attacker with access to port 10005/tcp to obtain passwords of the device. The security vulnerability could be exploited by an unauthenticated attacker with network access to port 10005/tcp. No user interaction is required to exploit this security vulnerability. The vulnerability impacts confidentiality of the device. At the time of advisory publication no public exploitation of this security vulnerability was known

Se ha identificado una vulnerabilidad en LOGO! 8 BM (incluidas las variantes SIPLUS) (todas las versiones anteriores a la versión V8.3). El almacenamiento no cifrado de contraseñas en el proyecto podría permitir a un atacante con acceso al puerto 10005 / tcp obtener las contraseñas del dispositivo. La vulnerabilidad de la seguridad podría ser explotada por un atacante no identificado con acceso de red al puerto 10005 / tcp. No se requiere la interacción del usuario para explotar esta vulnerabilidad de seguridad. La vulnerabilidad afecta a la confidencialidad del dispositivo. En el momento de la publicación consultiva, no se conocía la explotación pública de esta vulnerabilidad de seguridad

Due to storing passwords in a recoverable format on Siemens LOGO! 8 PLCs, an attacker can gain access to configured passwords as cleartext.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-04-08 CVE Reserved
2019-05-14 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-10-04 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-256: Plaintext Storage of a Password
CWE-522: Insufficiently Protected Credentials

CAPEC

References (5)

URL	Tag	Source
http://www.securityfocus.com/bid/108382	Third Party Advisory

URL	Date	SRC
http://packetstormsecurity.com/files/153124/Siemens-LOGO-8-Recoverable-Password-Format.html	2024-08-04
http://seclists.org/fulldisclosure/2019/May/49	2024-08-04
https://seclists.org/bugtraq/2019/May/74	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://cert-portal.siemens.com/productcert/pdf/ssa-542701.pdf	2022-01-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Siemens Search vendor "Siemens"	Logo\!8 Bm Firmware Search vendor "Siemens" for product "Logo\!8 Bm Firmware"	< 8.3 Search vendor "Siemens" for product "Logo\!8 Bm Firmware" and version " < 8.3"	-	Affected	in	Siemens Search vendor "Siemens"	Logo\!8 Bm Search vendor "Siemens" for product "Logo\!8 Bm"	*	-	Safe