SB2017071301 - Multiple vulnerabilities in Siemens SiPass

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2017071301

SB2017071301 - Multiple vulnerabilities in Siemens SiPass

Published: July 13, 2017

Security Bulletin ID SB2017071301
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 25% Low 75%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Authentication bypass (CVE-ID: CVE-2017-9939)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to bypass authentication on the target system.

The weakness exists due to improper authentication. An attacker with network access to the SiPass integrated server can bypass the authentication mechanism and perform administrative operations.

Successful exploitation of the vulnerability results in access to the system.

2) Security restrictions bypass (CVE-ID: CVE-2017-9940)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote low-privileged attacker to bypass security restrictions on the target system.

The weakness exists due to improper permissions and access controls. A remote attacker can bypass security restrictions and read or write files on the file system of the SiPass integrated server over the network.

Successful exploitation of the vulnerability results in information disclosure and modification.

3) Man-in-the-middle attack (CVE-ID: CVE-2017-9941)

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to conduct a man-in-the-middle attack.

The weakness exists due to improper permissions and access controls. A remote attacker can perform a man-in-in-the-middle attack, gain position between the SiPass integrated server and SiPass integrated clients and read or modify the network communication.

4) Information disclosure (CVE-ID: CVE-2017-9942)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to obtain potentially sensitive information.

The weakness exists due to improper permissions and access controls. A local attacker can gain access to credentials on the system.

Successful exploitation of the vulnerability results in information disclosure.

Remediation

Install update from vendor's website.

References