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cve[email protected]CVE-2021-23568
HistoryJan 10, 2022 - 2:10 p.m.

CVE-2021-23568

2022-01-1014:10:17
CWE-1321
web.nvd.nist.gov
22
cve-2021-23568
nvd
package extend2
prototype pollution
unsafe recursive merge

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.4 High

AI Score

Confidence

High

0.006 Low

EPSS

Percentile

78.2%

The package extend2 before 1.0.1 are vulnerable to Prototype Pollution via the extend function due to unsafe recursive merge.

Affected configurations

NVD
Node
eggjsextend2Range<1.0.1node.js
CPENameOperatorVersion
eggjs:extend2eggjs extend2lt1.0.1

CNA Affected

[
  {
    "product": "extend2",
    "vendor": "n/a",
    "versions": [
      {
        "lessThan": "1.0.1",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.4 High

AI Score

Confidence

High

0.006 Low

EPSS

Percentile

78.2%

Related for CVE-2021-23568