{ "data_type": "CVE", "data_format": "MITRE", "data_version": "4.0", "CVE_data_meta": { "ASSIGNER": "report@snyk.io", "DATE_PUBLIC": "2021-02-15T12:12:19.012177Z", "ID": "CVE-2021-23336", "STATE": "PUBLIC", "TITLE": "Web Cache Poisoning" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "python/cpython", "version": { "version_data": [ { "version_affected": ">=", "version_value": "0" }, { "version_affected": "<", "version_value": "3.6.13" }, { "version_affected": ">=", "version_value": "3.7.0" }, { "version_affected": "<", "version_value": "3.7.10" }, { "version_affected": ">=", "version_value": "3.8.0" }, { "version_affected": "<", "version_value": "3.8.8" }, { "version_affected": ">=", "version_value": "3.9.0" }, { "version_affected": "<", "version_value": "3.9.2" } ] } } ] }, "vendor_name": "n/a" } ] } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "Web Cache Poisoning" } ] } ] }, "references": { "reference_data": [ { "refsource": "MISC", "url": "https://snyk.io/vuln/SNYK-UPSTREAM-PYTHONCPYTHON-1074933", "name": "https://snyk.io/vuln/SNYK-UPSTREAM-PYTHONCPYTHON-1074933" }, { "refsource": "MISC", "url": "https://github.com/python/cpython/pull/24297", "name": "https://github.com/python/cpython/pull/24297" }, { "refsource": "MISC", "url": "https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/", "name": "https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/" }, { "refsource": "MLIST", "name": "[oss-security] 20210219 Django security releases: CVE-2021-23336: Web cache poisoning via ``django.utils.http.limited_parse_qsl()``", "url": "http://www.openwall.com/lists/oss-security/2021/02/19/4" }, { "refsource": "MLIST", "name": "[debian-lts-announce] 20210219 [SECURITY] [DLA 2569-1] python-django security update", "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00030.html" }, { "refsource": "FEDORA", "name": "FEDORA-2021-7547ad987f", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-f4fd9372c7", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-3352c1c802", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-7d3a9004e2", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MNUN5SOMFL2BBKP6ZAICIIUPQKZDMGYO/" }, { "refsource": "MLIST", "name": "[mina-dev] 20210225 [jira] [Created] (FTPSERVER-500) Security vulnerability in common/lib/log4j-1.2.17.jar", "url": "https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772@%3Cdev.mina.apache.org%3E" }, { "refsource": "FEDORA", "name": "FEDORA-2021-907f3bacae", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-7c1bb32d13", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KJXCMHLY7H3FIYLE4OKDYUILU2CCRUCZ/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-b1843407ca", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3YKKDLXL3UEZ3J426C2XTBS63AHE46SM/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-2897f5366c", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TFTELUMWZE3KV3JB2H5EE6VFRZFRD5MV/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-b326fcb83f", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OAGSWNGZJ6HQ5ISA67SNMK3CJRKICET7/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-1bb399a5af", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NJSCSN722JO2E2AGPWD4NTGVELVRPB4R/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-ef83e8525a", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HZTM7KLHFCE3LWSEVO2NAFLUHMGYMCRY/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-b76ede8f4d", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3EPYWWFDV22CJ5AOH5VCE72DOASZZ255/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-309bc2e727", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IHQDU7NXA7EWAE4W7VO6MURVJIULEPPR/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-5a09621ebb", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W2LSKBEFI5SYEY5FM6ICZVZM5WRQUCS4/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-e22bb0e548", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/46N6A52EGSXHJYCZWVMBJJIH4NWIV2B5/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-e525e48886", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LVNH6Z24IG3E67ZCQGGJ46FZB4XFLQNZ/" }, { "refsource": "MLIST", "name": "[debian-lts-announce] 20210405 [SECURITY] [DLA 2619-1] python3.5 security update", "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html" }, { "refsource": "MLIST", "name": "[debian-lts-announce] 20210417 [SECURITY] [DLA 2628-1] python2.7 security update", "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00015.html" }, { "refsource": "FEDORA", "name": "FEDORA-2021-b6b6093b3a", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N6VXJZSZ6N64AILJX4CTMACYGQGHHD5C/" }, { "refsource": "GENTOO", "name": "GLSA-202104-04", "url": "https://security.gentoo.org/glsa/202104-04" }, { "refsource": "MLIST", "name": "[airflow-users] 20210501 CVE-2021-28359: Apache Airflow Reflected XSS via Origin Query Argument in URL", "url": "https://lists.apache.org/thread.html/ra8ce70088ba291f358e077cafdb14d174b7a1ce9a9d86d1b332d6367@%3Cusers.airflow.apache.org%3E" }, { "refsource": "MLIST", "name": "[oss-security] 20210501 CVE-2021-28359: Apache Airflow Reflected XSS via Origin Query Argument in URL", "url": "http://www.openwall.com/lists/oss-security/2021/05/01/2" }, { "refsource": "MLIST", "name": "[announce] 20210501 Apache Airflow CVE: CVE-2021-28359: Apache Airflow Reflected XSS via Origin Query Argument in URL", "url": "https://lists.apache.org/thread.html/rc005f4de9d9b0ba943ceb8ff5a21a5c6ff8a9df52632476698d99432@%3Cannounce.apache.org%3E" }, { "refsource": "FEDORA", "name": "FEDORA-2021-98720f3785", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SGIY6I4YS3WOXAK4SXKIEOC2G4VZKIR7/" }, { "refsource": "FEDORA", "name": "FEDORA-2021-12df7f7382", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RSLQD5CCM75IZGAMBDGUZEATYU5YSGJ7/" }, { "url": "https://www.oracle.com/security-alerts/cpuApr2021.html", "refsource": "MISC", "name": "https://www.oracle.com/security-alerts/cpuApr2021.html" }, { "refsource": "CONFIRM", "name": "https://security.netapp.com/advisory/ntap-20210326-0004/", "url": "https://security.netapp.com/advisory/ntap-20210326-0004/" }, { "url": "https://www.oracle.com//security-alerts/cpujul2021.html", "refsource": "MISC", "name": "https://www.oracle.com//security-alerts/cpujul2021.html" }, { "url": "https://www.oracle.com/security-alerts/cpuoct2021.html", "refsource": "MISC", "name": "https://www.oracle.com/security-alerts/cpuoct2021.html" }, { "url": "https://www.oracle.com/security-alerts/cpujan2022.html", "refsource": "MISC", "name": "https://www.oracle.com/security-alerts/cpujan2022.html" }, { "refsource": "MLIST", "name": "[debian-lts-announce] 20230920 [SECURITY] [DLA 3575-1] python2.7 security update", "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00022.html" } ] }, "description": { "description_data": [ { "lang": "eng", "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." } ] }, "impact": { "cvss": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H/E:P/RL:U/RC:C", "baseScore": 5.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "HIGH" } }, "credit": [ { "lang": "eng", "value": "Snyk Security Team" } ] }