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Medium severity · published Sep 2, 2016
CVE-2016-5699
CRLF injection vulnerability in the HTTPConnection.putheader function in urllib2 and urllib in CPython (aka Python) before 2.7.10 and 3.x before 3.4.4 allows remote attackers to…
6.1
CVSS
9.9%
EPSS
No
On KEV
Description
CRLF injection vulnerability in the HTTPConnection.putheader function in urllib2 and urllib in CPython (aka Python) before 2.7.10 and 3.x before 3.4.4 allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in a URL.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)9.9% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PY
Python · Python
through 2.7.9; 3.0; 3.0.1; 3.1.0; 3.1.1; 3.1.2; +21 more · source: NVD
Affected product
PY
Python
Python
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-5699
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-5699
Exploit
http://blog.blindspotsecurity.com/2016/06/advisory-http-header-injection-in.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2016-1626.html
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2016-1627.html
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2016-1628.html
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2016-1629.html
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