CVE-2015-8954

The MemcmpLowercase function in Suricata before 2.0.6 improperly excludes the first byte from comparisons, which might allow remote attackers to bypass intrusion-prevention functionality via a crafted HTTP request.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

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

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://suricata-ids.org/2015/01/15/suricata-2-0-6-available/	Release Notes Vendor Advisory
https://redmine.openinfosecfoundation.org/issues/1364	Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=777523	Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:a:openinfosecfoundation:suricata:*:*:*:*:*:*:*:*

Information

Published : 2017-03-20 09:59

Updated : 2017-03-24 06:37

NVD link : CVE-2015-8954

Mitre link : CVE-2015-8954

JSON object : View

CWE

CWE-264

Permissions, Privileges, and Access Controls

Advertisement

Products Affected

openinfosecfoundation

suricata

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://suricata-ids.org/2015/01/15/suricata-2-0-6-available/", "name": "https://suricata-ids.org/2015/01/15/suricata-2-0-6-available/", "tags": ["Release Notes", "Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "https://redmine.openinfosecfoundation.org/issues/1364", "name": "https://redmine.openinfosecfoundation.org/issues/1364", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=777523", "name": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=777523", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "The MemcmpLowercase function in Suricata before 2.0.6 improperly excludes the first byte from comparisons, which might allow remote attackers to bypass intrusion-prevention functionality via a crafted HTTP request."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-264"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2015-8954", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "HIGH", "acInsufInfo": true, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}}, "publishedDate": "2017-03-20T16:59Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:openinfosecfoundation:suricata:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "2.0.5"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2017-03-24T13:37Z"}