SB2021012906 - Multiple vulnerabilities in Vir.IT eXplorer
Published: January 29, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2017-16233)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary within the 0x82730078 IOCTL in Viragtlt.sys and Viraglt64.sys system drivers. A local user can run a specially crafted program on the system, trigger memory corruption and execute arbitrary code on the system with elevated privileges.
2) Input validation error (CVE-ID: CVE-2017-16234)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the Viragtlt.sys and Viraglt64.sys system drivers. A local user can request the 0x82730048 IOTCL and perform a denial of service (DoS) attack.
3) Out-of-bounds write (CVE-ID: CVE-2017-16235)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary within the 0x82730098 IOCTL in Viragtlt.sys and Viraglt64.sys system drivers. A local user can run a specially crafted program on the system, trigger an out-of-bounds write and execute arbitrary code on the system with elevated privileges.
4) Input validation error (CVE-ID: CVE-2017-16236)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the Viragtlt.sys and Viraglt64.sys system drivers. A local user can request the 0x82730028 IOTCL and perform a denial of service (DoS) attack.
5) Out-of-bounds write (CVE-ID: CVE-2017-16237)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary within the 0x8273007C IOCTL in Viragtlt.sys and Viraglt64.sys system drivers. A local user can run a specially crafted program on the system, trigger an out-of-bounds write and execute arbitrary code on the system with elevated privileges.
6) Out-of-bounds write (CVE-ID: CVE-2017-16238)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary within the 0x82730080 IOCTL in Viragtlt.sys and Viraglt64.sys system drivers. A local user can run a specially crafted program on the system, trigger an out-of-bounds write and execute arbitrary code on the system with elevated privileges.
Remediation
Install update from vendor's website.