CVE-2020-36830 (GCVE-0-2020-36830)

Vulnerability from cvelistv5 – Published: 2024-09-02 16:00 – Updated: 2024-09-03 14:21
VLAI
Title
nescalante urlregex Backtracking index.js redos
Summary
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.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
4.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
Vendor Product Version
nescalante urlregex Affected: 0.1
Affected: 0.2
Affected: 0.3
Affected: 0.4
Affected: 0.5
Create a notification for this product.
urlregex_project urlregex Affected: 0.1 , ≤ 0.5 (custom)
    cpe:2.3:a:urlregex_project:urlregex:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
VulDB GitHub Commit Analyzer
Show details on NVD website
To clipboard 

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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2020-36830\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-03T14:16:38.459021Z\"}}}], \"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\"}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-03T14:21:22.983Z\"}}], \"cna\": {\"title\": \"nescalante urlregex Backtracking index.js redos\", \"credits\": [{\"lang\": \"en\", \"type\": \"tool\", \"value\": \"VulDB GitHub Commit Analyzer\"}], \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N\"}}, {\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 4.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L\"}}, {\"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 4.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L\"}}, {\"cvssV2_0\": {\"version\": \"2.0\", \"baseScore\": 4, \"vectorString\": \"AV:N/AC:L/Au:S/C:N/I:N/A:P\"}}], \"affected\": [{\"vendor\": \"nescalante\", \"modules\": [\"Backtracking\"], \"product\": \"urlregex\", \"versions\": [{\"status\": \"affected\", \"version\": \"0.1\"}, {\"status\": \"affected\", \"version\": \"0.2\"}, {\"status\": \"affected\", \"version\": \"0.3\"}, {\"status\": \"affected\", \"version\": \"0.4\"}, {\"status\": \"affected\", \"version\": \"0.5\"}]}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2020-08-14T00:00:00.000Z\", \"value\": \"Advisory disclosed\"}, {\"lang\": \"en\", \"time\": \"2020-09-16T00:00:00.000Z\", \"value\": \"Countermeasure disclosed\"}, {\"lang\": \"en\", \"time\": \"2024-08-31T02:00:00.000Z\", \"value\": \"VulDB entry created\"}, {\"lang\": \"en\", \"time\": \"2024-08-31T13:23:56.000Z\", \"value\": \"VulDB entry last update\"}], \"references\": [{\"url\": \"https://vuldb.com/?id.276269\", \"name\": \"VDB-276269 | nescalante urlregex Backtracking index.js redos\", \"tags\": [\"vdb-entry\"]}, {\"url\": \"https://vuldb.com/?ctiid.276269\", \"name\": \"VDB-276269 | CTI Indicators (IOB, IOC, TTP, IOA)\", \"tags\": [\"signature\", \"permissions-required\"]}, {\"url\": \"https://github.com/nescalante/urlregex/pull/8\", \"tags\": [\"exploit\", \"issue-tracking\"]}, {\"url\": \"https://github.com/nescalante/urlregex/commit/e5a085afe6abfaea1d1a78f54c45af9ef43ca1f9\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/nescalante/urlregex/releases/tag/v0.5.1\", \"tags\": [\"patch\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}, {\"lang\": \"de\", \"value\": \"Eine problematische Schwachstelle wurde in nescalante urlregex bis 0.5.0 gefunden. Hierbei geht es um eine nicht exakt ausgemachte Funktion der Datei index.js der Komponente Backtracking. Durch Manipulation mit unbekannten Daten kann eine inefficient regular expression complexity-Schwachstelle ausgenutzt werden. Umgesetzt werden kann der Angriff \\u00fcber das Netzwerk. Der Exploit steht zur \\u00f6ffentlichen Verf\\u00fcgung. Ein Aktualisieren auf die Version 0.5.1 vermag dieses Problem zu l\\u00f6sen. Der Patch wird als e5a085afe6abfaea1d1a78f54c45af9ef43ca1f9 bezeichnet. Als bestm\\u00f6gliche Massnahme wird das Einspielen eines Upgrades empfohlen.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1333\", \"description\": \"CWE-1333 Inefficient Regular Expression Complexity\"}]}], \"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2024-09-02T16:00:05.813Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2020-36830\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-09-03T14:21:44.280Z\", \"dateReserved\": \"2024-08-31T11:18:12.175Z\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"datePublished\": \"2024-09-02T16:00:05.813Z\", \"assignerShortName\": \"VulDB\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.