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SuseCVE-2021-31999

HistoryJul 15, 2021 - 9:15 a.m.

CVE-2021-31999

2021-07-1509:15:08

CWE-807

suse

web.nvd.nist.gov

cve-2021-31999

vulnerability

rancher

unauthorized access

security decision

CVSS2

6.5

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

CVSS3

8.8

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

AI Score

8.4

Confidence

High

EPSS

0.001

Percentile

37.0%

JSON

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

rancherrancherRange2.5.0–2.5.9

VendorProductVersionCPE
rancherrancher*cpe:2.3:a:rancher:rancher:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
rancher	rancher	*	cpe:2.3:a:rancher:rancher::::::::

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"
      }
    ]
  }
]

References

bugzilla.suse.com/show_bug.cgi?id=1187084

Social References

CVSS2

6.5

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

CVSS3

8.8

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

AI Score

8.4

Confidence

High

EPSS

0.001

Percentile

37.0%

JSON

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