CVE-2016-2119

libcli/smb/smbXcli_base.c in Samba 4.x before 4.2.14, 4.3.x before 4.3.11, and 4.4.x before 4.4.5 allows man-in-the-middle attackers to bypass a client-signing protection mechanism, and consequently spoof SMB2 and SMB3 servers, via the (1) SMB2_SESSION_FLAG_IS_GUEST or (2) SMB2_SESSION_FLAG_IS_NULL flag.

CVSS v3 7.5 HIGH
CVSS v2.0 6.8 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

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
http://lists.opensuse.org/opensuse-updates/2016-07/msg00060.html	Mailing List Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1486.html	Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1487.html	Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1494.html	Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html	Third Party Advisory
http://www.securityfocus.com/bid/91700	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1036244	Third Party Advisory VDB Entry
https://security.gentoo.org/glsa/201805-07	Third Party Advisory
https://www.samba.org/samba/security/CVE-2016-2119.html	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:samba:samba::::::::
	cpe:2.3:a:samba:samba::::::::
	cpe:2.3:a:samba:samba::::::::

History

No history.

Information

Published : 2016-07-07 15:59

Updated : 2024-02-28 15:21

NVD link : CVE-2016-2119

Mitre link : CVE-2016-2119

CVE.ORG link : CVE-2016-2119

JSON object : View

Products Affected

samba

samba

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

{"id": "CVE-2016-2119", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"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"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.6}]}, "published": "2016-07-07T15:59:00.133", "references": [{"url": "http://lists.opensuse.org/opensuse-updates/2016-07/msg00060.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://rhn.redhat.com/errata/RHSA-2016-1486.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://rhn.redhat.com/errata/RHSA-2016-1487.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://rhn.redhat.com/errata/RHSA-2016-1494.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/bid/91700", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "http://www.securitytracker.com/id/1036244", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "https://security.gentoo.org/glsa/201805-07", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://www.samba.org/samba/security/CVE-2016-2119.html", "tags": ["Vendor Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-94"}]}], "descriptions": [{"lang": "en", "value": "libcli/smb/smbXcli_base.c in Samba 4.x before 4.2.14, 4.3.x before 4.3.11, and 4.4.x before 4.4.5 allows man-in-the-middle attackers to bypass a client-signing protection mechanism, and consequently spoof SMB2 and SMB3 servers, via the (1) SMB2_SESSION_FLAG_IS_GUEST or (2) SMB2_SESSION_FLAG_IS_NULL flag."}, {"lang": "es", "value": "ibcli/smb/smbXcli_base.c en Samba 4.x en versiones anteriores a 4.2.14, 4.3.x en versiones anteriores a 4.3.11 y 4.4.x en versiones anteriores a 4.4.5 permite a atacantes man-in-the-middle eludir el mecanismo de protecci\u00f3n de firmado de cliente y consecuentemente suplantar los servidores SMB2 y SMB3, a trav\u00e9s de los indicadores (1) SMB2_SESSION_FLAG_IS_GUEST o (2) SMB2_SESSION_FLAG_IS_NULL."}], "lastModified": "2022-08-29T20:20:08.940", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E6FD4346-FDE6-40F8-AAC5-F72ED275E4F3", "versionEndExcluding": "4.2.14", "versionStartIncluding": "4.0.0"}, {"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "549834A6-DDF7-4C48-9626-EEF4668AE77C", "versionEndExcluding": "4.3.11", "versionStartIncluding": "4.3.0"}, {"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D45F68E2-A9BF-4B0C-9699-3D4D9419B405", "versionEndExcluding": "4.4.5", "versionStartIncluding": "4.4.0"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}