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RedhatCVE-2017-2659

HistoryMar 21, 2019 - 3:59 p.m.

CVE-2017-2659

2019-03-2115:59:57

CWE-287

CWE-209

redhat

web.nvd.nist.gov

cve-2017-2659

dropbear

gssapi

username

authentication

vulnerability

CVSS2

Attack Vector

NETWORK

Attack 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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.001

Percentile

49.6%

JSON

It was found that dropbear before version 2013.59 with GSSAPI leaks whether given username is valid or invalid. When an invalid username is given, the GSSAPI authentication failure was incorrectly counted towards the maximum allowed number of password attempts.

Affected configurations

Nvd

Vulners

Node

dropbear_ssh_projectdropbear_sshRange<2013.59

VendorProductVersionCPE
dropbear_ssh_projectdropbear_ssh*cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
dropbear_ssh_project	dropbear_ssh	*	cpe:2.3:a:dropbear_ssh_project:dropbear_ssh::::::::

CNA Affected

[
  {
    "product": "dropbear",
    "vendor": "[UNKNOWN]",
    "versions": [
      {
        "status": "affected",
        "version": "fixed in 2013.59"
      }
    ]
  }
]

References

bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2659

secure.ucc.asn.au/hg/dropbear/rev/d7784616409a#l1.86

CVSS2

Attack Vector

NETWORK

Attack 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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.001

Percentile

49.6%

JSON

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