SB2017111006 - Multiple vulnerabilities in VMware vCenter Server
Published: November 10, 2017
Security Bulletin ID
SB2017111006
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Denial of service (CVE-ID: CVE-2017-4927)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to insufficient validation of user-supplied input. A remote attacker can send specially crafted LDAP packets and cause the service to crash.
Successful exploitation of the vulnerability results in denial of service.
2) Information disclosure (CVE-ID: CVE-2017-4928)
CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)
CVSSv4: CVSS:4.0/AV:N/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 obtain potentially sensitive information on the target system.
The weakness exists due to insufficient validation of user-supplied input. A remote attacker can send specially crafted POST requests via the Flash-based vSphere Web Client to trigger a URL validation flaw and conduct server side request forgery (SSRF) and carriage return line feed (CRLF) injection attacks to gain access to arbitrary data.
Remediation
Install update from vendor's website.