Denial of service in Red Hat Automation Platform



Published: 2021-09-09
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-33503
CWE-ID CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Ansible Automation Platform
Server applications / Other server solutions

python-galaxy-ng (Red Hat package)
Operating systems & Components / Operating system package or component

automation-hub (Red Hat package)
Operating systems & Components / Operating system package or component

python-urllib3 (Red Hat package)
Operating systems & Components / Operating system package or component

python-requests (Red Hat package)
Operating systems & Components / Operating system package or component

python3-click (Red Hat package)
Operating systems & Components / Operating system package or component

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU54077

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33503

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation in urllib3 when processing URL with multiple "@" characters in the authority component. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Ansible Automation Platform: 1.2.0 - 1.2.4

python-galaxy-ng (Red Hat package): 4.2.2-1.el7pc

automation-hub (Red Hat package): 4.2.2-1.el7pc

python-urllib3 (Red Hat package): 1.25.11-1.el7pc

python-requests (Red Hat package): 2.24.0-1.el7pc

python3-click (Red Hat package): before 7.1.2-3.el7pc

External links

http://access.redhat.com/errata/RHSA-2021:3473


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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