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suseSuseOPENSUSE-SU-2021:1390-1
HistoryOct 21, 2021 - 12:00 a.m.

Security update for ssh-audit (moderate)

2021-10-2100:00:00
lists.opensuse.org
46

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

An update that fixes one vulnerability is now available.

Description:

This update for ssh-audit fixes the following issues:

ssh-audit was updated to version 2.5.0

  • Fixed crash when running host key tests.

  • Handles server connection failures more gracefully.

  • Now prints JSON with indents when -jj is used (useful for debugging).

  • Added MD5 fingerprints to verbose output.

  • Added -d/–debug option for getting debugging output.

  • Updated JSON output to include MD5 fingerprints. Note that this results
    in a breaking change in the ‘fingerprints’ dictionary format.

  • Updated OpenSSH 8.1 (and earlier) policies to include rsa-sha2-512 and
    rsa-sha2-256.

  • Added OpenSSH v8.6 & v8.7 policies.

  • Added 3 new key exchanges:

    • gss-gex-sha1-eipGX3TCiQSrx573bT1o1Q==
    • gss-group1-sha1-eipGX3TCiQSrx573bT1o1Q==
    • gss-group14-sha1-eipGX3TCiQSrx573bT1o1Q==
  • Added 3 new MACs:

    • hmac-ripemd160-96
    • AEAD_AES_128_GCM
    • AEAD_AES_256_GCM

Update to version 2.4.0

  • Added multi-threaded scanning support.
  • Added version check for OpenSSH user enumeration (CVE-2018-15473).
  • Added deprecation note to host key types based on SHA-1.
  • Added extra warnings for SSHv1.
  • Added built-in hardened OpenSSH v8.5 policy.
  • Upgraded warnings to failures for host key types based on SHA-1
  • Fixed crash when receiving unexpected response during host key test.
  • Fixed hang against older Cisco devices during host key test & gex test.
  • Fixed improper termination while scanning multiple targets when
    one target returns an error.
  • Dropped support for Python 3.5 (which reached EOL in Sept.2020)
  • Added 1 new key exchange: sntrup761x25519-sha512(a)openssh.com.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

  • openSUSE Backports SLE-15-SP3:

    zypper in -t patch openSUSE-2021-1390=1

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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