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Vulnerability Details : CVE-2019-9947

An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the path component of a URL that lacks a ? character) followed by an HTTP header or a Redis command. This is similar to the CVE-2019-9740 query string issue. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.
Publish Date : 2019-03-23 Last Update Date : 2021-02-04
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- CVSS Scores & Vulnerability Types

CVSS Score
4.3
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 93

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2019:2030: python security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20192030 unix
RHSA-2019:3335: python27:2.7 security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20193335 unix
RHSA-2019:3520: python3 security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20193520 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-2019-9947

# Product Type Vendor Product Version Update Edition Language
1 Application Python Python * * * * Version Details Vulnerabilities
2 Application Python Python 2.7.16 - * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Python Python 2

- References For CVE-2019-9947

https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html
MLIST [debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security update
https://access.redhat.com/errata/RHSA-2019:3725
REDHAT RHSA-2019:3725
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
SUSE openSUSE-SU-2020:0086
https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html
MLIST [debian-lts-announce] 20200822 [SECURITY] [DLA 2337-1] python2.7 security update
https://security.gentoo.org/glsa/202003-26
GENTOO GLSA-202003-26
https://access.redhat.com/errata/RHSA-2019:3520
REDHAT RHSA-2019:3520
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html
SUSE openSUSE-SU-2019:2393
https://access.redhat.com/errata/RHSA-2019:3335
REDHAT RHSA-2019:3335
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html
SUSE openSUSE-SU-2019:2389
https://usn.ubuntu.com/4127-2/
UBUNTU USN-4127-2
https://usn.ubuntu.com/4127-1/
UBUNTU USN-4127-1
https://access.redhat.com/errata/RHSA-2019:2030
REDHAT RHSA-2019:2030
https://lists.debian.org/debian-lts-announce/2019/06/msg00026.html
MLIST [debian-lts-announce] 20190625 [SECURITY] [DLA 1835-2] python3.4 regression update
https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html
MLIST [debian-lts-announce] 20190625 [SECURITY] [DLA 1834-1] python2.7 security update
https://lists.debian.org/debian-lts-announce/2019/06/msg00023.html
MLIST [debian-lts-announce] 20190625 [SECURITY] [DLA 1835-1] python3.4 security update
https://lists.fedoraproject.org/archives/list/[email protected]/message/JMWSKTNOHSUOT3L25QFJAVCFYZX46FYK/
FEDORA FEDORA-2019-ec26883852
https://access.redhat.com/errata/RHSA-2019:1260
REDHAT RHSA-2019:1260
https://lists.fedoraproject.org/archives/list/[email protected]/message/JXASHCDD4PQFKTMKQN4YOP5ZH366ABN4/
FEDORA FEDORA-2019-1ffd6b6064
https://bugs.python.org/issue35906
https://security.netapp.com/advisory/ntap-20190404-0004/ CONFIRM
http://www.openwall.com/lists/oss-security/2021/02/04/2
MLIST [oss-security] 20210204 [CVE-2020-15693, CVE-2020-15694] Nim - stdlib Httpclient - Header Crlf Injection & Server Response Validation

- Metasploit Modules Related To CVE-2019-9947

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


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