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.

CVSS v3.0 7.8 HIGH
CVSS v2.0 4.4 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.4^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 3.4 / Impact : 6.4

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://safebreach.com/blog	Third Party Advisory
https://safebreach.com/Post/Comodo-Internet-Security-DLL-Preloading-and-Potential-Abuses-CVE-2019-18215	Exploit Third Party Advisory
https://forums.comodo.com/news-announcements-feedback-cis/comodo-internet-security-2019-v12106914-released-t124993.0.html	Release Notes Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:comodo:comodo_internet_security:*:*:*:*:*:*:*:*

Information

Published : 2019-11-18 12:15

Updated : 2021-07-21 04:39

NVD link : CVE-2019-18215

Mitre link : CVE-2019-18215

JSON object : View

CWE

CWE-427

Uncontrolled Search Path Element

Products Affected

comodo

comodo_internet_security

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://safebreach.com/blog", "name": "https://safebreach.com/blog", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://safebreach.com/Post/Comodo-Internet-Security-DLL-Preloading-and-Potential-Abuses-CVE-2019-18215", "name": "https://safebreach.com/Post/Comodo-Internet-Security-DLL-Preloading-and-Potential-Abuses-CVE-2019-18215", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://forums.comodo.com/news-announcements-feedback-cis/comodo-internet-security-2019-v12106914-released-t124993.0.html", "name": "https://forums.comodo.com/news-announcements-feedback-cis/comodo-internet-security-2019-v12106914-released-t124993.0.html", "tags": ["Release Notes", "Vendor Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-427"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2019-18215", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.4, "accessVector": "LOCAL", "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 3.4, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}}, "publishedDate": "2019-11-18T20:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:comodo:comodo_internet_security:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "12.1.0.6914"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-07-21T11:39Z"}

7.8 /10