Security readout for executives and security teams
Plain-English summary
This flaw affects HTCondor versions before 9.0.10 in the 9.0 branch and before 9.5.1 in the 9.1 branch. It can let an attacker access S3-stored files that a user asked HTCondor to transfer, creating a confidentiality risk for cloud-backed job data.
Executive priority
Prioritize remediation where HTCondor handles sensitive research, customer, regulated, or proprietary files through S3. The main business risk is unauthorized disclosure of cloud-stored job data; urgency depends on affected version presence and S3 transfer use.
Technical view
The source describes unauthorized access to files in S3 cloud storage involved in HTCondor file transfer workflows. The bundle does not provide CVSS, CWE, attack prerequisites, authentication requirements, or exploit mechanics. Affected versions are HTCondor 9.0.x before 9.0.10 and 9.1.x before 9.5.1.
Likely exposure
Exposure is most likely in HTCondor deployments using affected 9.0.x or 9.1.x releases and S3-backed file transfers. Systems not using HTCondor or not transferring files through S3 are not indicated as exposed by the provided sources.
Exploitation context
The provided bundle does not show CISA KEV listing or cite active exploitation. It states an attacker can access S3 files requested for transfer, but does not provide public exploit status, required access level, or detailed attack path.
Researcher notes
The evidence is sparse: no CVSS, CWE, exploit status, or detailed preconditions are included. Treat the advisory versions as authoritative from this bundle, and avoid assuming broader HTCondor or S3 impact beyond user-requested HTCondor transfers.
Mitigation direction
- Upgrade HTCondor 9.0.x to 9.0.10 or later.
- Upgrade HTCondor 9.1.x to 9.5.1 or later.
- Review HTCondor vendor advisories for any additional operational guidance.
- Audit S3 data transferred through affected HTCondor deployments.
Validation and detection
- Inventory HTCondor versions across schedulers, execute nodes, and related services.
- Identify jobs or workflows using HTCondor S3 file transfers.
- Check whether any affected versions handled sensitive S3 objects.
- Review S3 access logs for unexpected reads of transferred objects.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-45103 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://research.cs.wisc.edu/htcondor/security/vulnerabilities/HTCONDOR-2021-0005/CVE reference · x_refsource_MISC
- https://research.cs.wisc.edu/htcondor/security/vulnerabilities/HTCONDOR-2022-0001CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.