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VulDBVULNRICHMENT:CVE-2020-36830

HistorySep 02, 2024 - 4:00 p.m.

CVE-2020-36830 nescalante urlregex Backtracking index.js redos

2024-09-0216:00:05

CWE-1333

VulDB

github.com

vulnerability

nescalante urlregex

denial of service

inefficient regular expression

redos

index.js

upgrade

version 0.5.1

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

4.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

CVSS4

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/SC:N/VI:N/SI:N/VA:L/SA:N

AI Score

Confidence

Low

EPSS

0.001

Percentile

21.0%

SSVC

Exploitation

poc

Automatable

Technical Impact

partial

JSON

A vulnerability was found in nescalante urlregex up to 0.5.0 and classified as problematic. This issue affects some unknown processing of the file index.js of the component Backtracking. The manipulation leads to inefficient regular expression complexity. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.5.1 is able to address this issue. The identifier of the patch is e5a085afe6abfaea1d1a78f54c45af9ef43ca1f9. It is recommended to upgrade the affected component.

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:urlregex_project:urlregex:*:*:*:*:*:*:*:*"
    ],
    "vendor": "urlregex_project",
    "product": "urlregex",
    "versions": [
      {
        "status": "affected",
        "version": "0.1",
        "versionType": "custom",
        "lessThanOrEqual": "0.5"
      }
    ],
    "defaultStatus": "unknown"
  }
]

References

github.com/nescalante/urlregex/commit/e5a085afe6abfaea1d1a78f54c45af9ef43ca1f9

github.com/nescalante/urlregex/pull/8

github.com/nescalante/urlregex/releases/tag/v0.5.1

vuldb.com/?ctiid.276269

vuldb.com/?id.276269

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

4.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

CVSS4

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/SC:N/VI:N/SI:N/VA:L/SA:N

AI Score

Confidence

Low

EPSS

0.001

Percentile

21.0%

SSVC

Exploitation

poc

Automatable

Technical Impact

partial

JSON

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