Vulnerability Monitor

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CVE-2019-18215

An issue was discovered in signmgr.dll 6.5.0.819 in Comodo Internet Security through 12.0. A DLL Preloading vulnerability allows an attacker to implant an unsigned DLL named iLog.dll in a partially unprotected product directory. This DLL is then loaded into a high-privileged service before the binary signature validation logic is loaded, and might bypass some of the self-defense mechanisms.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.8, requiring local system access to exploit with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from comodo organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2019-11-18T20:15:11.223

Last Modified

2024-11-21T04:32:50.987

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:P/I:P/A:P

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

3.4

Impact Score

6.4

Weaknesses

Type: Primary
CWE-427

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	comodo	comodo_internet_security	< 12.1.0.6914	Yes

References

https://forums.comodo.com/news-announcements-feedback-cis/comodo-internet-security-2019-v12106914-released-t124993.0.html Release Notes, Vendor Advisory ([email protected])
https://safebreach.com/Post/Comodo-Internet-Security-DLL-Preloading-and-Potential-Abuses-CVE-2019-18215 Exploit, Third Party Advisory ([email protected])
https://safebreach.com/blog Third Party Advisory ([email protected])
https://forums.comodo.com/news-announcements-feedback-cis/comodo-internet-security-2019-v12106914-released-t124993.0.html Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://safebreach.com/Post/Comodo-Internet-Security-DLL-Preloading-and-Potential-Abuses-CVE-2019-18215 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://safebreach.com/blog Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For comodo's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.