SB2017062603 - Multiple vulnerabilities in Symantec Messaging Gateway
Published: June 26, 2017
Security Bulletin ID
SB2017062603
CSH Severity
High
Patch available
YES
Number of vulnerabilities
3
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Remote code execution (CVE-ID: CVE-2017-6326)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
The vulnerability allows a remote authenticated attacker to execute arbitrary code on the target system.
The weakness exists due to improper input validation. A remote attacker can send a specially crafted file and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in system compromise.
2) Security restrictions bypass (CVE-ID: CVE-2017-6324)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote unauthenticated attacker to bypass security restrictions.
The weakness exists due to improper input validation when handling malicious Word files. A remote attacker can send an email containing a specially crafted .doc file, trick the victim into opening it and bypass the 'disarm' settings.
3) Arbitrary PHP code execution (CVE-ID: CVE-2017-6325)
CWE-ID: CWE-20 - Improper input validation
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:Amber
The vulnerability allows a remote unauthenticated attacker to execute PHP code on the target system.
The weakness exists due to improper validation of user-supplied input. A remote attacker can supply a specially crafted URL and execute arbitrary PHP code on the system.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
Install update from vendor's website.