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cve[email protected]CVE-2021-31999
HistoryJul 15, 2021 - 9:15 a.m.

CVE-2021-31999

2021-07-1509:15:08
CWE-807
web.nvd.nist.gov
31
6
cve-2021-31999
vulnerability
rancher
unauthorized access
security decision

6.5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

37.0%

A Reliance on Untrusted Inputs in a Security Decision vulnerability in Rancher allows users in the cluster to act as others users in the cluster by forging the “Impersonate-User” or “Impersonate-Group” headers. This issue affects: Rancher versions prior to 2.5.9. Rancher versions prior to 2.4.16.

Affected configurations

NVD
Node
rancherrancherRange<2.4.16
OR
rancherrancherRange2.5.02.5.9

CNA Affected

[
  {
    "product": "Rancher",
    "vendor": "Rancher",
    "versions": [
      {
        "lessThan": "2.5.9",
        "status": "affected",
        "version": "Rancher",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "SUSE Linux Enterprise Server 15",
    "vendor": "Rancher",
    "versions": [
      {
        "lessThan": "2.4.16",
        "status": "affected",
        "version": "Rancher",
        "versionType": "custom"
      }
    ]
  }
]

Social References

More

6.5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

37.0%