CVE-2019-6453

mIRC before 7.55 allows remote command execution by using argument injection through custom URI protocol handlers. The attacker can specify an irc:// URI that loads an arbitrary .ini file from a UNC share pathname. Exploitation depends on browser-specific URI handling (Chrome is not exploitable).

CVSS v3.0 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.mirc.com/news.html	Product
https://proofofcalc.com/cve-2019-6453-mIRC/	Exploit Third Party Advisory
https://proofofcalc.com/advisories/20190218.txt	Third Party Advisory
https://github.com/proofofcalc/cve-2019-6453-poc	Exploit Third Party Advisory
https://www.exploit-db.com/exploits/46392/	Exploit Third Party Advisory VDB Entry
https://twitter.com/proofofcalc/status/1097518413143003136	Exploit Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:a:mirc:mirc:*:*:*:*:*:*:*:*

Information

Published : 2019-02-18 07:29

Updated : 2020-08-24 10:37

NVD link : CVE-2019-6453

Mitre link : CVE-2019-6453

JSON object : View

CWE

CWE-88

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

Advertisement

Products Affected

mirc

mirc

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://www.mirc.com/news.html", "name": "https://www.mirc.com/news.html", "tags": ["Product"], "refsource": "MISC"}, {"url": "https://proofofcalc.com/cve-2019-6453-mIRC/", "name": "https://proofofcalc.com/cve-2019-6453-mIRC/", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://proofofcalc.com/advisories/20190218.txt", "name": "https://proofofcalc.com/advisories/20190218.txt", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/proofofcalc/cve-2019-6453-poc", "name": "https://github.com/proofofcalc/cve-2019-6453-poc", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://www.exploit-db.com/exploits/46392/", "name": "46392", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "refsource": "EXPLOIT-DB"}, {"url": "https://twitter.com/proofofcalc/status/1097518413143003136", "name": "https://twitter.com/proofofcalc/status/1097518413143003136", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "mIRC before 7.55 allows remote command execution by using argument injection through custom URI protocol handlers. The attacker can specify an irc:// URI that loads an arbitrary .ini file from a UNC share pathname. Exploitation depends on browser-specific URI handling (Chrome is not exploitable)."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-88"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2019-6453", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/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": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.2}}, "publishedDate": "2019-02-18T15:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:mirc:mirc:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "7.55"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2020-08-24T17:37Z"}