CVE-2021-34418 (GCVE-0-2021-34418)
Vulnerability from cvelistv5 – Published: 2021-11-11 22:59 – Updated: 2024-09-16 22:14
VLAI
EPSS
VEX
Title
Pre-auth Null pointer crash in on-premise web console
Summary
The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service.
Severity
4 (Medium)
CWE
- Improper Input Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://explore.zoom.us/en/trust/security/securit… | x_refsource_MISC |
Impacted products
5 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Zoom Video Communications Inc | Zoom On-Premise Meeting Connector |
Affected:
unspecified , < 4.6.239.20200613
(custom)
|
guessed | |
| Zoom Video Communications Inc | Zoom On-Premise Meeting Connector MMR |
Affected:
unspecified , < 4.6.239.20200613
(custom)
|
guessed | |
| Zoom Video Communications Inc | Zoom On-Premise Recording Connector |
Affected:
unspecified , < 3.8.42.20200905
(custom)
|
guessed | |
| Zoom Video Communications Inc | Zoom On-Premise Virtual Room Connector |
Affected:
unspecified , < 4.4.6344.20200612
(custom)
|
guessed | |
| Zoom Video Communications Inc | Zoom On-Premise Virtual Room Connector Load Balancer |
Affected:
unspecified , < 2.5.5492.20200616
(custom)
|
guessed |
Date Public
2021-11-12 00:00
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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