Multiple vulnerabilities in Fuji Electric Tellus Lite V-Simulator and V-Server Lite
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 6 |
| CVE-ID | CVE-2021-38413 CVE-2021-38419 CVE-2021-38401 CVE-2021-38421 CVE-2021-38409 CVE-2021-38415 |
| CWE-ID | CWE-121 CWE-787 CWE-822 CWE-125 CWE-824 CWE-122 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
V-Server Lite Server applications / Web servers Tellus Lite V-Simulator Server applications / Other server solutions |
| Vendor |
Security Bulletin
This security bulletin contains information about 6 vulnerabilities.
1) Stack-based buffer overflow
EUVDB-ID: #VU57660
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-38413
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the parsing of V8 and X1 files in the V-Simulator module. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsV-Server Lite: before 4.0.12.0
Tellus Lite V-Simulator: before 4.0.12.0
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-299-01
http://www.zerodayinitiative.com/advisories/ZDI-21-1269/
http://www.zerodayinitiative.com/advisories/ZDI-21-1268/
http://www.zerodayinitiative.com/advisories/ZDI-21-1261/
http://www.zerodayinitiative.com/advisories/ZDI-21-1260/
http://www.zerodayinitiative.com/advisories/ZDI-21-1259/
http://www.zerodayinitiative.com/advisories/ZDI-21-1258/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Out-of-bounds write
EUVDB-ID: #VU57661
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-38419
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error within the parsing of V9 files in the V-Simulator module. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsV-Server Lite: before 4.0.12.0
Tellus Lite V-Simulator: before 4.0.12.0
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-299-01
http://www.zerodayinitiative.com/advisories/ZDI-21-1267/
http://www.zerodayinitiative.com/advisories/ZDI-21-1266/
http://www.zerodayinitiative.com/advisories/ZDI-21-1263/
http://www.zerodayinitiative.com/advisories/ZDI-21-1262/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Untrusted Pointer Dereference
EUVDB-ID: #VU57662
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-38401
CWE-ID:
CWE-822 - Untrusted Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to untrusted pointer dereference error. A remote attacker can trigger pointer dereference and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsV-Server Lite: before 4.0.12.0
Tellus Lite V-Simulator: before 4.0.12.0
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-299-01
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Out-of-bounds read
EUVDB-ID: #VU57663
Risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-38421
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the parsing of V8 files within the V-Simulator module. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system, or perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsV-Server Lite: before 4.0.12.0
Tellus Lite V-Simulator: before 4.0.12.0
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-299-01
http://www.zerodayinitiative.com/advisories/ZDI-21-1264/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
5) Access of Uninitialized Pointer
EUVDB-ID: #VU57664
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-38409
CWE-ID:
CWE-824 - Access of Uninitialized Pointer
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to an access of uninitialized pointer. A remote attacker can execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsV-Server Lite: before 4.0.12.0
Tellus Lite V-Simulator: before 4.0.12.0
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-299-01
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
6) Heap-based buffer overflow
EUVDB-ID: #VU57665
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-38415
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the parsing of V8 files within the V-Simulator module. A remote attacker can trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsV-Server Lite: before 4.0.12.0
Tellus Lite V-Simulator: before 4.0.12.0
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-299-01
http://www.zerodayinitiative.com/advisories/ZDI-21-1265/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
