CVE-2018-15473

OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.

CVSS v3.0 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://github.com/openbsd/src/commit/779974d35b4859c07bc3cb8a12c74b43b0a7d1e0	Patch
https://bugs.debian.org/906236	Issue Tracking Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2018/08/15/5	Mailing List Patch Third Party Advisory
http://www.securitytracker.com/id/1041487	Broken Link Patch Third Party Advisory VDB Entry
https://lists.debian.org/debian-lts-announce/2018/08/msg00022.html	Mailing List Third Party Advisory
https://www.exploit-db.com/exploits/45233/	Exploit Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/45210/	Exploit Third Party Advisory VDB Entry
https://www.debian.org/security/2018/dsa-4280	Third Party Advisory
http://www.securityfocus.com/bid/105140	Broken Link Third Party Advisory VDB Entry
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0011	Third Party Advisory
https://security.gentoo.org/glsa/201810-03	Third Party Advisory
https://security.netapp.com/advisory/ntap-20181101-0001/	Third Party Advisory
https://usn.ubuntu.com/3809-1/	Third Party Advisory
https://www.exploit-db.com/exploits/45939/	Exploit Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2019:0711	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2143	Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.html	Patch Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server:6.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:::::::*

Configuration 4 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::

Configuration 5 (hide)

AND

cpe:2.3:o:netapp:cn1610_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:netapp:cn1610:-:*:*:*:*:*:*:*

Configuration 6 (hide)

OR	cpe:2.3:a:netapp:cloud_backup:-:::::::*
	cpe:2.3:a:netapp:data_ontap_edge:-:::::::*
	cpe:2.3:a:netapp:ontap_select_deploy:-:::::::*
	cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:::::::*
	cpe:2.3:o:netapp:clustered_data_ontap:-:::::::*
	cpe:2.3:a:netapp:service_processor:-:::::::*
	cpe:2.3:o:netapp:data_ontap:-:::::7-mode::
	cpe:2.3:a:netapp:fas_baseboard_management_controller:-:::::::*
	cpe:2.3:a:netapp:aff_baseboard_management_controller:-:::::::*
	cpe:2.3:a:netapp:oncommand_unified_manager::::::vsphere::*
	cpe:2.3:a:netapp:virtual_storage_console::::::vsphere::*

Configuration 7 (hide)

AND

cpe:2.3:a:netapp:vasa_provider:*:*:*:*:*:*:*:*

cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND

cpe:2.3:a:netapp:storage_replication_adapter:*:*:*:*:*:vsphere:*:*

cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*

Configuration 9 (hide)

cpe:2.3:a:oracle:sun_zfs_storage_appliance_kit:8.8.6:*:*:*:*:*:*:*

Configuration 10 (hide)

AND

cpe:2.3:o:siemens:scalance_x204rna_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:siemens:scalance_x204rna:-:*:*:*:*:*:*:*

Information

Published : 2018-08-17 12:29

Updated : 2023-02-23 15:13

NVD link : CVE-2018-15473

Mitre link : CVE-2018-15473

JSON object : View

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Products Affected

netapp

cloud_backup
data_ontap_edge
cn1610
steelstore_cloud_integrated_storage
vasa_provider
ontap_select_deploy
oncommand_unified_manager
fas_baseboard_management_controller
clustered_data_ontap
storage_replication_adapter
cn1610_firmware
virtual_storage_console
aff_baseboard_management_controller
data_ontap
service_processor

canonical

ubuntu_linux

oracle

sun_zfs_storage_appliance_kit

debian

debian_linux

redhat

enterprise_linux_workstation
enterprise_linux_desktop
enterprise_linux_server

siemens

scalance_x204rna
scalance_x204rna_firmware

openbsd

openssh

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/openbsd/src/commit/779974d35b4859c07bc3cb8a12c74b43b0a7d1e0", "name": "https://github.com/openbsd/src/commit/779974d35b4859c07bc3cb8a12c74b43b0a7d1e0", "tags": ["Patch"], "refsource": "MISC"}, {"url": "https://bugs.debian.org/906236", "name": "https://bugs.debian.org/906236", "tags": ["Issue Tracking", "Mailing List", "Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "http://www.openwall.com/lists/oss-security/2018/08/15/5", "name": "http://www.openwall.com/lists/oss-security/2018/08/15/5", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "http://www.securitytracker.com/id/1041487", "name": "1041487", "tags": ["Broken Link", "Patch", "Third Party Advisory", "VDB Entry"], "refsource": "SECTRACK"}, {"url": "https://lists.debian.org/debian-lts-announce/2018/08/msg00022.html", "name": "[debian-lts-announce] 20180821 [SECURITY] [DLA-1474-1] openssh security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://www.exploit-db.com/exploits/45233/", "name": "45233", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "refsource": "EXPLOIT-DB"}, {"url": "https://www.exploit-db.com/exploits/45210/", "name": "45210", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "refsource": "EXPLOIT-DB"}, {"url": "https://www.debian.org/security/2018/dsa-4280", "name": "DSA-4280", "tags": ["Third Party Advisory"], "refsource": "DEBIAN"}, {"url": "http://www.securityfocus.com/bid/105140", "name": "105140", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0011", "name": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0011", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://security.gentoo.org/glsa/201810-03", "name": "GLSA-201810-03", "tags": ["Third Party Advisory"], "refsource": "GENTOO"}, {"url": "https://security.netapp.com/advisory/ntap-20181101-0001/", "name": "https://security.netapp.com/advisory/ntap-20181101-0001/", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://usn.ubuntu.com/3809-1/", "name": "USN-3809-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://www.exploit-db.com/exploits/45939/", "name": "45939", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "refsource": "EXPLOIT-DB"}, {"url": "https://access.redhat.com/errata/RHSA-2019:0711", "name": "RHSA-2019:0711", "tags": ["Third Party Advisory"], "refsource": "REDHAT"}, {"url": "https://access.redhat.com/errata/RHSA-2019:2143", "name": "RHSA-2019:2143", "tags": ["Third Party Advisory"], "refsource": "REDHAT"}, {"url": "https://www.oracle.com/security-alerts/cpujan2020.html", "name": "https://www.oracle.com/security-alerts/cpujan2020.html", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf", "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf", "tags": ["Patch", "Third Party Advisory"], "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-362"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-15473", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 3.9}}, "publishedDate": "2018-08-17T19:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "7.7"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:netapp:cn1610_firmware:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:netapp:cn1610:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:netapp:data_ontap_edge:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:netapp:ontap_select_deploy:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:netapp:service_processor:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:netapp:data_ontap:-:*:*:*:*:7-mode:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:netapp:fas_baseboard_management_controller:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:netapp:aff_baseboard_management_controller:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:netapp:oncommand_unified_manager:*:*:*:*:*:vsphere:*:*", "cpe_name": [], "vulnerable": true, "versionStartIncluding": "9.4"}, {"cpe23Uri": "cpe:2.3:a:netapp:virtual_storage_console:*:*:*:*:*:vsphere:*:*", "cpe_name": [], "vulnerable": true, "versionStartIncluding": "7.2"}]}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:netapp:vasa_provider:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionStartIncluding": "7.2"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:netapp:storage_replication_adapter:*:*:*:*:*:vsphere:*:*", "cpe_name": [], "vulnerable": true, "versionStartIncluding": "7.2"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:oracle:sun_zfs_storage_appliance_kit:8.8.6:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:siemens:scalance_x204rna_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "3.2.7"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:siemens:scalance_x204rna:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-02-23T23:13Z"}

5.3 /10

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0 /10

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

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