Auth bypass in Wisc Htcondor
CVE-2019-18823
HTCondor up to and including stable series 8.8.6 and development series 8.9.4 has Incorrect Access Control. It is possible to use a different authentication method to submit a job than the administrator has specified. If the administrator has configured the READ or WRITE methods to include CLAIMTOBE, then it is possible to impersonate another user to the condor_schedd. (For example to submit or remove jobs)
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.028 (86.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- Wisc Htcondor
- Debian Linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 30, 31, 32
Weakness classification (CWE)
Public proof-of-concept exploits
References
- research.cs.wisc.edu/htcondor/new.html (Release Notes, Vendor Advisory)
- research.cs.wisc.edu/htcondor/ (Product)
- research.cs.wisc.edu/htcondor/security/vulnerabilities/HTCONDOR-2020-0003.html (Mitigation, Vendor Advisory)
- research.cs.wisc.edu/htcondor/security/vulnerabilities/HTCONDOR-2020-0002.html (Mitigation, Vendor Advisory)
- research.cs.wisc.edu/htcondor/security/vulnerabilities/HTCONDOR-2020-0001.html (Mitigation, Vendor Advisory)
- research.cs.wisc.edu/htcondor/security/vulnerabilities/HTCONDOR-2020-0004.html (Vendor Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2021/08/msg00000.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-18823?
- CVE-2019-18823 is a critical-severity vulnerability in Wisc Htcondor, classified under Improper Authentication. CVSS score: 9.8/10. Published 2020-04-27.
- How severe is CVE-2019-18823?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-18823 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.