SB2021091614 - Multiple vulnerabilities in Siemens SINEMA Remote Connect Server
Published: September 16, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 vulnerabilities.
1) Modification of assumed-immutable data (CVE-ID: CVE-2021-37177)
CWE-ID: CWE-471 - Modification of Assumed-Immutable Data
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exists due to application does not perform validation of the attacker-controlled data, assuming that data is valid and safe. A remote attacker on the local network can manipulate with the status provided by the syslog clients managed by the affected software.
2) Improper access control (CVE-ID: CVE-2021-37183)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to the affected software allows sending send-to-sleep notifications to the managed devices. A remote attacker on the local network can cause a denial of service condition on the target system.
3) Information disclosure (CVE-ID: CVE-2021-37190)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application. A remote attacker on the local network can gain unauthorized access to sensitive information on the system.
4) Improper control of interaction frequency (CVE-ID: CVE-2021-37191)
CWE-ID: CWE-799 - Improper Control of Interaction Frequency
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to gain access to sensitive information on the target system.
The vulnerability exists due to the affected software lacks brute force protection. A remote attacker on the local network can brute force the usernames from the affected software.
5) Information disclosure (CVE-ID: CVE-2021-37192)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application. A remote attacker on the local network can gain unauthorized access to sensitive information on the system.
6) Modification of assumed-immutable data (CVE-ID: CVE-2021-37193)
CWE-ID: CWE-471 - Modification of Assumed-Immutable Data
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exists due to application does not perform validation of the attacker-controlled data, assuming that data is valid and safe. A remote attacker on the local network can manipulate certain parameters and set a valid user of the affected software as invalid (or vice-versa).
Remediation
Install update from vendor's website.