High severity · published Sep 27, 2020
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…
7.2
CVSS
6.4%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)6.4% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0 · source: NVD
FE
Fedora · Fedoraproject
31; 32; 33 · source: NVD
HS
Hci Storage Node · Netapp
All versions, or not specified · source: NVD
LE
Leap · Opensuse
15.1 · source: NVD
PY
Python · Python
3.0.0 before 3.5.10; 3.6.0 before 3.6.12; 3.7.0 before 3.7.9; 3.8.0 before 3.8.5 · source: NVD
SO
Solidfire · Netapp
All versions, or not specified · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 16.04; 18.04 · source: NVD
ZS
Zfs Storage Appliance Kit · Oracle
8.8 · source: NVD
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-26116
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-26116
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00027.html
Exploit
https://bugs.python.org/issue39603
Mailing List
https://lists.debian.org/debian-lts-announce/2020/11/msg00032.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BW4GCLQISJCOEGQNIMVUZDQMIY6RR6CC/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HDQ2THWU4GPV4Y5H5WW5PFMSWXL2CRFD/
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