CVE-2020-26116

http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of HTTPConnection.request.

CVSS v3.0 7.2 HIGH
CVSS v2.0 6.4 MEDIUM

7.2^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

6.4^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 10.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://bugs.python.org/issue39603	Exploit Issue Tracking Patch Vendor Advisory
https://python-security.readthedocs.io/vuln/http-header-injection-method.html	Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BW4GCLQISJCOEGQNIMVUZDQMIY6RR6CC/	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OXI72HIHMXCQFWTULUXDG7VDA2BCYL4Y/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JWMAVY4T4257AZHTF2RZJKNJNSJFY24O/	Mailing List Third Party Advisory
https://usn.ubuntu.com/4581-1/	Third Party Advisory
https://security.netapp.com/advisory/ntap-20201023-0001/	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HDQ2THWU4GPV4Y5H5WW5PFMSWXL2CRFD/	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00027.html	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QOX7DGMMWWL6POCRYGAUCISOLR2IG3XV/	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00032.html	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202101-18	Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:python:python::::::::
	cpe:2.3:a:python:python::::::::
	cpe:2.3:a:python:python::::::::
	cpe:2.3:a:python:python::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:31:::::::*
	cpe:2.3:o:fedoraproject:fedora:32:::::::*
	cpe:2.3:o:fedoraproject:fedora:33:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:12.04::::-:::
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm:::
	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::

Configuration 4 (hide)

OR	cpe:2.3:a:netapp:solidfire:-:::::::*
	cpe:2.3:h:netapp:hci_compute_node:-:::::::*
	cpe:2.3:h:netapp:hci_storage_node:-:::::::*

Configuration 5 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Configuration 6 (hide)

cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*

Configuration 7 (hide)

cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

Information

Published : 2020-09-26 21:15

Updated : 2021-12-07 11:55

NVD link : CVE-2020-26116

Mitre link : CVE-2020-26116

JSON object : View

CWE

CWE-116

Improper Encoding or Escaping of Output

Products Affected

netapp

hci_compute_node
solidfire
hci_storage_node

python

python

oracle

zfs_storage_appliance_kit

fedoraproject

fedora

canonical

ubuntu_linux

opensuse

leap

debian

debian_linux

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"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JWMAVY4T4257AZHTF2RZJKNJNSJFY24O/", "name": "FEDORA-2020-887d3fa26f", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "FEDORA"}, {"url": "https://usn.ubuntu.com/4581-1/", "name": "USN-4581-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://security.netapp.com/advisory/ntap-20201023-0001/", "name": "https://security.netapp.com/advisory/ntap-20201023-0001/", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HDQ2THWU4GPV4Y5H5WW5PFMSWXL2CRFD/", "name": "FEDORA-2020-e33acdea18", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "FEDORA"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00027.html", "name": "openSUSE-SU-2020:1859", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SUSE"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QOX7DGMMWWL6POCRYGAUCISOLR2IG3XV/", "name": "FEDORA-2020-d42cb01973", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "FEDORA"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/11/msg00032.html", "name": "[debian-lts-announce] 20201119 [SECURITY] [DLA 2456-1] python3.5 security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://security.gentoo.org/glsa/202101-18", "name": "GLSA-202101-18", "tags": ["Third Party Advisory"], "refsource": "GENTOO"}, {"url": "https://www.oracle.com/security-alerts/cpuoct2021.html", "name": "https://www.oracle.com/security-alerts/cpuoct2021.html", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of HTTPConnection.request."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-116"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-26116", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.4, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 4.9, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 3.9}}, "publishedDate": "2020-09-27T04:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "3.7.9", "versionStartIncluding": "3.7.0"}, {"cpe23Uri": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "3.8.5", "versionStartIncluding": "3.8.0"}, {"cpe23Uri": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "3.6.12", "versionStartIncluding": "3.6.0"}, {"cpe23Uri": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "3.5.10", "versionStartIncluding": "3.0.0"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:h:netapp:hci_storage_node:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-12-07T19:55Z"}

7.2 /10

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

6.4 /10

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

JSON object

Attach tags to CVE-2020-26116

7.2^/10

6.4^/10

Attach tags to `CVE-2020-26116`