Fedora 34 update for python-django



Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-31542
CVE-2021-28658
CVE-2021-32052
CWE-ID CWE-434
CWE-22
CWE-113
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

python-django
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Arbitrary file upload

EUVDB-ID: #VU52842

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-31542

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload via the MultiPartParser, UploadedFile, and FieldFile methods. A remote attacker can upload a file with a specially crafted filename containing directory traversal characters and overwrite arbitrary files on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise the affected system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 34

python-django: before 3.1.9-1.fc34

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2021-01044b8a59


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Path traversal

EUVDB-ID: #VU51936

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-28658

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in MultiPartParser. A remote attacker can use a specially crafted files with suitably crafted file names and read arbitrary files on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 34

python-django: before 3.1.9-1.fc34

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2021-01044b8a59


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) HTTP response splitting

EUVDB-ID: #VU52942

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-32052

CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP splitting attacks.

The vulnerability exists due to software does not correctly processes CRLF character sequences in URLValidator. A remote attacker can send specially crafted request containing CRLF sequence and make the application to send a split HTTP response.

Successful exploitation of the vulnerability may allow an attacker perform cache poisoning attack.

Note, the vulnerability affects Django installations on Python 3.9.5+.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 34

python-django: before 3.1.9-1.fc34

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2021-01044b8a59


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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