Vulnerability identifier: #VU63556

Vulnerability risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-45104

CWE-ID: CWE-326

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
HTCondor
Other software / Other software solutions

Vendor: University of Wisconsin–Madison

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists when HTCondor daemons are configured to use BLOWFISH or 3DES encryption and match password authentication is enabled. A remote attacker can capture network traffic between a condor_schedd and a condor_startd or condor_collector and gain access to sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

HTCondor: 9.0.0 - 9.0.9, 9.1.1 - 9.5.0

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External links
http://research.cs.wisc.edu/htcondor/security/vulnerabilities/HTCONDOR-2021-0006/
http://research.cs.wisc.edu/htcondor/security/vulnerabilities/HTCONDOR-2022-0002

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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.