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cveGitHub_MCVE-2021-29452
HistoryApr 16, 2021 - 10:15 p.m.

CVE-2021-29452

2021-04-1622:15:14
CWE-269
CWE-863
GitHub_M
web.nvd.nist.gov
64
9
cve-2021-29452
a12n-server
npm package
authentication system
hal-form
user editing
admin privileges

CVSS2

4

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

CVSS3

8.1

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

EPSS

0.001

Percentile

22.7%

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

Nvd
Vulners
Node
curveballjsa12n-serverRange0.18.00.18.2node.js
VendorProductVersionCPE
curveballjsa12n-server*cpe:2.3:a:curveballjs:a12n-server:*:*:*:*:*:node.js:*:*

CNA Affected

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

Social References

More

CVSS2

4

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

CVSS3

8.1

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

EPSS

0.001

Percentile

22.7%

Related for CVE-2021-29452