CVE-2016-5699

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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 inject arbitrary HTTP headers via CRLF sequences in a URL.

6.1 /10

CVSS v3 : MEDIUM

V3 Legend

Vector : AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References
Link Resource
http://blog.blindspotsecurity.com/2016/06/advisory-http-header-injection-in.html Exploit Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
http://rhn.redhat.com/errata/RHSA-2016-1626.html
http://rhn.redhat.com/errata/RHSA-2016-1627.html
http://rhn.redhat.com/errata/RHSA-2016-1628.html
http://rhn.redhat.com/errata/RHSA-2016-1629.html
http://rhn.redhat.com/errata/RHSA-2016-1630.html
http://www.openwall.com/lists/oss-security/2016/06/14/7 Mailing List
http://www.openwall.com/lists/oss-security/2016/06/15/12 Mailing List
http://www.openwall.com/lists/oss-security/2016/06/16/2 Mailing List
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
http://www.securityfocus.com/bid/91226
http://www.splunk.com/view/SP-CAAAPSV
http://www.splunk.com/view/SP-CAAAPUE
https://docs.python.org/3.4/whatsnew/changelog.html#python-3-4-4 Release Notes
https://hg.python.org/cpython/raw-file/v2.7.10/Misc/NEWS Release Notes
https://hg.python.org/cpython/rev/1c45047c5102 Patch
https://hg.python.org/cpython/rev/bf3e1c9b80e9 Patch
https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html
Configurations

Configuration 1 (hide)

cpe:2.3:a:python:python:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:a:python:python:3.0:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.1.0:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.1.1:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.1.2:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.1.3:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.1.4:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.1.5:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.0:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.1:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.2:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.3:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.4:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.5:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.2.6:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.0:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.1:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.2:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.3:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.4:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.5:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.3.6:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.4.0:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.4.1:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.4.2:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.4.3:*:*:*:*:*:*:*
History

12 Feb 2023, 23:24

Type Values Removed Values Added
Summary It was found that the Python's httplib library (used by urllib, urllib2 and others) did not properly check HTTPConnection.putheader() function arguments. An attacker could use this flaw to inject additional headers in a Python application that allowed user provided header names or values. 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.
References
  • {'url': 'https://access.redhat.com/security/cve/CVE-2016-5699', 'name': 'https://access.redhat.com/security/cve/CVE-2016-5699', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHSA-2016:1626', 'name': 'https://access.redhat.com/errata/RHSA-2016:1626', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHSA-2016:1628', 'name': 'https://access.redhat.com/errata/RHSA-2016:1628', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1303699', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1303699', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHSA-2016:1629', 'name': 'https://access.redhat.com/errata/RHSA-2016:1629', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHSA-2016:1627', 'name': 'https://access.redhat.com/errata/RHSA-2016:1627', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHSA-2016:1630', 'name': 'https://access.redhat.com/errata/RHSA-2016:1630', 'tags': [], 'refsource': 'MISC'}

02 Feb 2023, 21:17

Type Values Removed Values Added
References
  • (MISC) https://access.redhat.com/security/cve/CVE-2016-5699 -
  • (MISC) https://access.redhat.com/errata/RHSA-2016:1626 -
  • (MISC) https://access.redhat.com/errata/RHSA-2016:1628 -
  • (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1303699 -
  • (MISC) https://access.redhat.com/errata/RHSA-2016:1629 -
  • (MISC) https://access.redhat.com/errata/RHSA-2016:1627 -
  • (MISC) https://access.redhat.com/errata/RHSA-2016:1630 -
Summary 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. It was found that the Python's httplib library (used by urllib, urllib2 and others) did not properly check HTTPConnection.putheader() function arguments. An attacker could use this flaw to inject additional headers in a Python application that allowed user provided header names or values.
Information

Published : 2016-09-02 14:59

Updated : 2023-12-10 11:46

NVD link : CVE-2016-5699

Mitre link : CVE-2016-5699

CVE.ORG link : CVE-2016-5699

JSON object : View

Products Affected

python

  • python
CWE
CWE-113

Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')