5.3

CVE-2016-20012

Exploit
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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Openbsd ≫ Openssh Version <= 8.7
Netapp ≫ Solidfire Version-
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 5.33% 0.916
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
nvd@nist.gov 4.3 8.6 2.9
AV:N/AC:M/Au:N/C:P/I:N/A:N
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-203 Observable Discrepancy

The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.

https://github.com/openssh/openssh-portable/blob/d0fffc88c8fe90c1815c6f4097bc8cbcabc0f3dd/auth2-pubkey.c#L261-L265
Third Party Advisory
Exploit
https://github.com/openssh/openssh-portable/pull/270
Patch
Third Party Advisory
https://github.com/openssh/openssh-portable/pull/270#issuecomment-920577097
Third Party Advisory
Issue Tracking
https://github.com/openssh/openssh-portable/pull/270#issuecomment-943909185
Third Party Advisory
Issue Tracking
https://rushter.com/blog/public-ssh-keys/
Third Party Advisory
Exploit
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
Third Party Advisory
Mailing List