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cve[email protected]CVE-2021-29452
HistoryApr 16, 2021 - 10:15 p.m.

CVE-2021-29452

2021-04-1622:15:14
CWE-863
CWE-269
web.nvd.nist.gov
60
9
cve-2021-29452
a12n-server
npm package
authentication system
hal-form
user editing
admin privileges

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

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

22.8%

a12n-server is an npm package which aims to provide a simple authentication system. A new HAL-Form was added to allow editing users in version 0.18.0. This feature should only have been accessible to admins. Unfortunately, privileges were incorrectly checked allowing any logged in user to make this change. Patched in v0.18.2.

Affected configurations

Vulners
NVD
Node
curveballa12n_serverRange0.18

CNA Affected

[
  {
    "product": "a12n-server",
    "vendor": "curveball",
    "versions": [
      {
        "status": "affected",
        "version": ">= 0.18 < 0.18.2"
      }
    ]
  }
]

Social References

More

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

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

22.8%

Related for CVE-2021-29452