OpenSSH through 8.7 allows remote attackers, who have a suspicion that a certain combination of username and public key is known to an SSH server, to test whether this suspicion is correct. This occurs because a challenge is sent only when that combination could be valid for a login session. NOTE: the vendor does not recognize user enumeration as a vulnerability for this product
References
Link | Resource |
---|---|
https://github.com/openssh/openssh-portable/blob/d0fffc88c8fe90c1815c6f4097bc8cbcabc0f3dd/auth2-pubkey.c#L261-L265 | Exploit Third Party Advisory |
https://github.com/openssh/openssh-portable/pull/270 | Patch Third Party Advisory |
https://github.com/openssh/openssh-portable/pull/270#issuecomment-920577097 | Issue Tracking Third Party Advisory |
https://github.com/openssh/openssh-portable/pull/270#issuecomment-943909185 | Issue Tracking Third Party Advisory |
https://rushter.com/blog/public-ssh-keys/ | Exploit Third Party Advisory |
https://security.netapp.com/advisory/ntap-20211014-0005/ | Third Party Advisory |
https://utcc.utoronto.ca/~cks/space/blog/tech/SSHKeysAreInfoLeak | Third Party Advisory |
https://www.openwall.com/lists/oss-security/2018/08/24/1 | Mailing List Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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History
07 Nov 2023, 02:30
Type | Values Removed | Values Added |
---|---|---|
Summary | OpenSSH through 8.7 allows remote attackers, who have a suspicion that a certain combination of username and public key is known to an SSH server, to test whether this suspicion is correct. This occurs because a challenge is sent only when that combination could be valid for a login session. NOTE: the vendor does not recognize user enumeration as a vulnerability for this product |
Information
Published : 2021-09-15 20:15
Updated : 2024-08-06 04:16
NVD link : CVE-2016-20012
Mitre link : CVE-2016-20012
CVE.ORG link : CVE-2016-20012
JSON object : View
Products Affected
netapp
- ontap_select_deploy_administration_utility
- hci_management_node
- clustered_data_ontap
- solidfire
openbsd
- openssh
CWE