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[email protected]CVE-2017-7562

HistoryJul 26, 2018 - 3:29 p.m.

CVE-2017-7562

2018-07-2615:29:00

CWE-295

CWE-287

[email protected]

web.nvd.nist.gov

authentication bypass

krb5

certauth

cve-2017-7562

security vulnerability

nvd

4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

6.7 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

58.8%

JSON

An authentication bypass flaw was found in the way krb5’s certauth interface before 1.16.1 handled the validation of client certificates. A remote attacker able to communicate with the KDC could potentially use this flaw to impersonate arbitrary principals under rare and erroneous circumstances.

Affected configurations

Vulners

NVD

Node

mitkrb5-applRange≤1.16.1

VendorProductVersionCPE
mitkrb5\-appl*cpe:2.3:a:mit:krb5\-appl:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
mit	krb5\-appl	*	cpe:2.3:a:mit:krb5\-appl::::::::

CNA Affected

[
  {
    "product": "krb5",
    "vendor": "MIT",
    "versions": [
      {
        "status": "affected",
        "version": "1.16.1"
      }
    ]
  }
]