MidnightBSD

Advisories for lizardsystems

CVE-2018-25259

Terminal Services Manager 3.1 contains a stack-based buffer overflow vulnerability in the computer names field that allows local attackers to execute arbitrary code by triggering structured exception handling. Attackers can craft a malicious input file with shellcode and jump instructions that overwrite the SEH handler pointer to execute calc.exe or other payloads when imported through the add computers wizard.

CVSS 3.x

Source Score Severity Vector Exploitability Impact
nvd@nist.gov 7.8 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 1.8 5.9
disclosure@vulncheck.com 8.4 HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 2.5 5.9

Products Affected

Vendor Product Version
lizardsystems terminal_services_manager *
CVE-2018-25265

LanSpy 2.0.1.159 contains a local buffer overflow vulnerability in the scan section that allows local attackers to execute arbitrary code by exploiting structured exception handling mechanisms. Attackers can craft malicious payloads using egghunter techniques to locate and execute shellcode, triggering code execution through SEH chain manipulation and controlled jumps.

CVSS 3.x

Source Score Severity Vector Exploitability Impact
nvd@nist.gov 7.8 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 1.8 5.9
disclosure@vulncheck.com 8.4 HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 2.5 5.9

Products Affected

Vendor Product Version
lizardsystems lanspy *
CVE-2018-25268

LanSpy 2.0.1.159 contains a local buffer overflow vulnerability that allows attackers to overwrite the instruction pointer by supplying oversized input to the scan field. Attackers can craft a payload with 688 bytes of padding followed by 4 bytes of controlled data to crash the application or potentially achieve code execution.

CVSS 3.x

Source Score Severity Vector Exploitability Impact
disclosure@vulncheck.com 8.4 HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 2.5 5.9
nvd@nist.gov 7.8 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 1.8 5.9

Products Affected

Vendor Product Version
lizardsystems lanspy 2.0.1.159