CVE-2018-20250

In WinRAR versions prior to and including 5.61, There is path traversal vulnerability when crafting the filename field of the ACE format (in UNACEV2.dll). When the filename field is manipulated with specific patterns, the destination (extraction) folder is ignored, thus treating the filename as an absolute path.

CVSS v3.0 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

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

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

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.win-rar.com/whatsnew.html	Vendor Advisory
http://www.securityfocus.com/bid/106948	Third Party Advisory VDB Entry
https://research.checkpoint.com/extracting-code-execution-from-winrar/	Exploit Third Party Advisory
https://github.com/blau72/CVE-2018-20250-WinRAR-ACE	Exploit Third Party Advisory
https://www.exploit-db.com/exploits/46552/	Exploit VDB Entry Third Party Advisory
http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html	Third Party Advisory VDB Entry
http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace	Third Party Advisory
https://www.exploit-db.com/exploits/46756/	Exploit VDB Entry Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:a:rarlab:winrar:*:*:*:*:*:*:*:*

Information

Published : 2019-02-05 12:29

Updated : 2019-10-09 16:39

NVD link : CVE-2018-20250

Mitre link : CVE-2018-20250

JSON object : View

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Advertisement

Products Affected

rarlab

winrar

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://www.win-rar.com/whatsnew.html", "name": "https://www.win-rar.com/whatsnew.html", "tags": ["Vendor Advisory"], "refsource": "MISC"}, {"url": "http://www.securityfocus.com/bid/106948", "name": "106948", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "https://research.checkpoint.com/extracting-code-execution-from-winrar/", "name": "https://research.checkpoint.com/extracting-code-execution-from-winrar/", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/blau72/CVE-2018-20250-WinRAR-ACE", "name": "https://github.com/blau72/CVE-2018-20250-WinRAR-ACE", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://www.exploit-db.com/exploits/46552/", "name": "46552", "tags": ["Exploit", "VDB Entry", "Third Party Advisory"], "refsource": "EXPLOIT-DB"}, {"url": "http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html", "name": "http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "MISC"}, {"url": "http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace", "name": "http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://www.exploit-db.com/exploits/46756/", "name": "46756", "tags": ["Exploit", "VDB Entry", "Third Party Advisory"], "refsource": "EXPLOIT-DB"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "In WinRAR versions prior to and including 5.61, There is path traversal vulnerability when crafting the filename field of the ACE format (in UNACEV2.dll). When the filename field is manipulated with specific patterns, the destination (extraction) folder is ignored, thus treating the filename as an absolute path."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-22"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-20250", "ASSIGNER": "cve@checkpoint.com"}}, "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": true}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/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": "2019-02-05T20:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:rarlab:winrar:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "5.61"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2019-10-09T23:39Z"}