CVE-2021-23336
Vulnerability from cvelistv5
Published
2021-02-15 12:15
Modified
2024-09-16 18:55
Summary
Web Cache Poisoning
References
report@snyk.iohttp://www.openwall.com/lists/oss-security/2021/02/19/4Mailing List, Patch, Third Party Advisory
report@snyk.iohttp://www.openwall.com/lists/oss-security/2021/05/01/2Mailing List, Third Party Advisory
report@snyk.iohttps://github.com/python/cpython/pull/24297Patch, Third Party Advisory
report@snyk.iohttps://lists.apache.org/thread.html/ra8ce70088ba291f358e077cafdb14d174b7a1ce9a9d86d1b332d6367%40%3Cusers.airflow.apache.org%3E
report@snyk.iohttps://lists.apache.org/thread.html/rc005f4de9d9b0ba943ceb8ff5a21a5c6ff8a9df52632476698d99432%40%3Cannounce.apache.org%3E
report@snyk.iohttps://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
report@snyk.iohttps://lists.debian.org/debian-lts-announce/2021/02/msg00030.htmlMailing List, Third Party Advisory
report@snyk.iohttps://lists.debian.org/debian-lts-announce/2021/04/msg00005.htmlMailing List, Third Party Advisory
report@snyk.iohttps://lists.debian.org/debian-lts-announce/2021/04/msg00015.htmlMailing List, Third Party Advisory
report@snyk.iohttps://lists.debian.org/debian-lts-announce/2023/09/msg00022.html
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3EPYWWFDV22CJ5AOH5VCE72DOASZZ255/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3YKKDLXL3UEZ3J426C2XTBS63AHE46SM/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/46N6A52EGSXHJYCZWVMBJJIH4NWIV2B5/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZTM7KLHFCE3LWSEVO2NAFLUHMGYMCRY/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IHQDU7NXA7EWAE4W7VO6MURVJIULEPPR/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJXCMHLY7H3FIYLE4OKDYUILU2CCRUCZ/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LVNH6Z24IG3E67ZCQGGJ46FZB4XFLQNZ/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MNUN5SOMFL2BBKP6ZAICIIUPQKZDMGYO/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N6VXJZSZ6N64AILJX4CTMACYGQGHHD5C/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJSCSN722JO2E2AGPWD4NTGVELVRPB4R/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OAGSWNGZJ6HQ5ISA67SNMK3CJRKICET7/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSLQD5CCM75IZGAMBDGUZEATYU5YSGJ7/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGIY6I4YS3WOXAK4SXKIEOC2G4VZKIR7/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFTELUMWZE3KV3JB2H5EE6VFRZFRD5MV/
report@snyk.iohttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W2LSKBEFI5SYEY5FM6ICZVZM5WRQUCS4/
report@snyk.iohttps://security.gentoo.org/glsa/202104-04Third Party Advisory
report@snyk.iohttps://security.netapp.com/advisory/ntap-20210326-0004/Third Party Advisory
report@snyk.iohttps://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/Technical Description, Third Party Advisory
report@snyk.iohttps://snyk.io/vuln/SNYK-UPSTREAM-PYTHONCPYTHON-1074933Exploit, Third Party Advisory
report@snyk.iohttps://www.oracle.com//security-alerts/cpujul2021.htmlPatch, Third Party Advisory
report@snyk.iohttps://www.oracle.com/security-alerts/cpuApr2021.htmlPatch, Third Party Advisory
report@snyk.iohttps://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
report@snyk.iohttps://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
Impacted products
n/apython/cpython
Show details on NVD website


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    "cna": {
      "affected": [
        {
          "product": "python/cpython",
          "vendor": "n/a",
          "versions": [
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              "status": "affected",
              "version": "0",
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            {
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              "status": "affected",
              "version": "3.8.0",
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            },
            {
              "lessThan": "3.8.8",
              "status": "affected",
              "version": "unspecified",
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              "status": "affected",
              "version": "3.9.0",
              "versionType": "custom"
            },
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              "status": "affected",
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      "descriptions": [
        {
          "lang": "en",
          "value": "The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter."
        }
      ],
      "metrics": [
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          "cvssV3_1": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "exploitCodeMaturity": "PROOF_OF_CONCEPT",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "remediationLevel": "UNAVAILABLE",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 5.6,
            "temporalSeverity": "MEDIUM",
            "userInteraction": "REQUIRED",
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            "version": "3.1"
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      "title": "Web Cache Poisoning"
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  },
  "cveMetadata": {
    "assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
    "assignerShortName": "snyk",
    "cveId": "CVE-2021-23336",
    "datePublished": "2021-02-15T12:15:20.788790Z",
    "dateReserved": "2021-01-08T00:00:00",
    "dateUpdated": "2024-09-16T18:55:19.315Z",
    "state": "PUBLISHED"
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Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20210326-0004/\",\"source\":\"report@snyk.io\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/\",\"source\":\"report@snyk.io\",\"tags\":[\"Technical Description\",\"Third Party Advisory\"]},{\"url\":\"https://snyk.io/vuln/SNYK-UPSTREAM-PYTHONCPYTHON-1074933\",\"source\":\"report@snyk.io\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com//security-alerts/cpujul2021.html\",\"source\":\"report@snyk.io\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpuApr2021.html\",\"source\":\"report@snyk.io\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpujan2022.html\",\"source\":\"report@snyk.io\",\"tags\":[\"Patch\",\"Third Party 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  }
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.