the ultimate security vulnerability data source
(e.g.: CVE-2009-1234 or 2010-1234 or 20101234)
Log In   Register
  Take a third party risk management course for FREE
Vulnerability Feeds & WidgetsNew  

Vulnerability Details : CVE-2018-20852

http.cookiejar.DefaultPolicy.domain_return_ok in Lib/http/ in Python before 3.7.3 does not correctly validate the domain: it can be tricked into sending existing cookies to the wrong server. An attacker may abuse this flaw by using a server with a hostname that has another valid hostname as a suffix (e.g., to steal cookies for When a program uses http.cookiejar.DefaultPolicy and tries to do an HTTP connection to an attacker-controlled server, existing cookies can be leaked to the attacker. This affects 2.x through 2.7.16, 3.x before 3.4.10, 3.5.x before 3.5.7, 3.6.x before 3.6.9, and 3.7.x before 3.7.3.
Publish Date : 2019-07-13 Last Update Date : 2020-08-22
Search Twitter   Search YouTube   Search Google

- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2020:1131: python security update (Moderate) oval:com.redhat.rhsa:def:20201131 unix
RHSA-2020:1132: python3 security update (Moderate) oval:com.redhat.rhsa:def:20201132 unix
RHSA-2020:1605: python27:2.7 security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20201605 unix
RHSA-2020:1764: python3 security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20201764 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2018-20852

# Product Type Vendor Product Version Update Edition Language
1 Application Python Python * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Python Python 1

- References For CVE-2018-20852
SUSE openSUSE-SU-2019:1989
MLIST [debian-lts-announce] 20190817 [SECURITY] [DLA 1889-1] python3.4 security update
SUSE openSUSE-SU-2019:1988
MLIST [debian-lts-announce] 20190831 [SECURITY] [DLA 1906-1] python2.7 security update
REDHAT RHSA-2019:3725[email protected]/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V/
FEDORA FEDORA-2019-0d3fcae639[email protected]/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76/
FEDORA FEDORA-2019-74ba24605e[email protected]/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX/
FEDORA FEDORA-2019-758824a3ff
REDHAT RHSA-2019:3948
SUSE openSUSE-SU-2020:0086
GENTOO GLSA-202003-26
MLIST [debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security update
MLIST [debian-lts-announce] 20200822 [SECURITY] [DLA 2337-1] python2.7 security update

- Metasploit Modules Related To CVE-2018-20852

There are not any metasploit modules related to this CVE entry (Please visit for more information)

CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site. OVAL is a registered trademark of The MITRE Corporation and the authoritative source of OVAL content is MITRE's OVAL web site.
Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.