Security Resilience

CVE-2023-28342

DoS in Zohocorp Manageengine Adselfservice Plus 4.5 … 6.2

High EPSSDoS
Published
05 April 2023
Modified
13 February 2025
Patch / advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.78 99.6th percentile
Risk Priority 83 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-28342 is a high-severity Uncontrolled Resource Consumption (CWE-400) vulnerability in Zohocorp Manageengine Adselfservice Plus. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 0.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

Zoho ManageEngine ADSelfService Plus versions prior to 6218 contain a vulnerability in the Mobile App Authentication API that permits unauthenticated remote attackers to trigger a denial-of-service condition. The flaw is reflected in a CVSS 3.1 base score of 7.5 with network attack vector, low complexity, and no required privileges or user interaction, resulting in high impact to availability while leaving confidentiality and integrity unaffected.

An attacker with network access can send crafted requests to the exposed Mobile App Authentication API endpoint, exhausting resources and rendering the service unavailable to legitimate users. Because the API does not enforce authentication, exploitation requires no valid credentials or prior interaction with the target system.

Vendor advisory information published at manageengine.com directs administrators to upgrade ADSelfService Plus to release 6218 or later to address the issue. The EPSS score for this CVE rose from lower values to a peak of 0.8545 on 2025-12-11 before receding to the current 0.5856, indicating a period of increased exploitation interest after disclosure.

EU & UK References

Vulnerability Data

Zoho ManageEngine ADSelfService Plus before 6218 allows anyone to conduct a Denial-of-Service attack via the Mobile App Authentication API.

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-35719Same product: Zohocorp Manageengine Adselfservice Plus
CVE-2024-27310Same product: Zohocorp Manageengine Adselfservice Plus
CVE-2021-33256Same product: Zohocorp Manageengine Adselfservice Plus
CVE-2021-28958Same product: Zohocorp Manageengine Adselfservice Plus
CVE-2025-3833Same product: Zohocorp Manageengine Adselfservice Plus
CVE-2024-0252Same product: Zohocorp Manageengine Adselfservice Plus
CVE-2023-35854Same product: Zohocorp Manageengine Adselfservice Plus
CVE-2021-40539Same product: Zohocorp Manageengine Adselfservice Plus
CVE-2022-28810Same product: Zohocorp Manageengine Adselfservice Plus
CVE-2025-11250Same product: Zohocorp Manageengine Adselfservice Plus

Affected Assets

zohocorp
manageengine adselfservice plus
4.5, 5.0, 5.0.6, 5.1, 5.2

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-400

Limiting concurrent sessions directly prevents uncontrolled resource consumption by capping the number of active sessions per user or account.

addresses: CWE-400

Analysis identifies uncontrolled resource consumption indicative of denial-of-service or abuse attempts.

addresses: CWE-400

Contingency plan testing includes resource exhaustion scenarios to verify recovery, making it harder for attackers to sustain exploits that cause uncontrolled consumption.

addresses: CWE-400

Updated contingency plans include current procedures to detect, contain, and recover from resource exhaustion, limiting an attacker's ability to sustain impact from uncontrolled consumption.

addresses: CWE-400

Alternate site allows resumption of operations if resource exhaustion at the primary site is exploited to cause unavailability.

addresses: CWE-400

Alternate telecommunications services enable resumption of essential functions when primary services become unavailable due to uncontrolled resource consumption.

addresses: CWE-400

The team can analyze and respond to resource exhaustion incidents, reducing the impact of attacks that exploit uncontrolled consumption weaknesses.

addresses: CWE-400

Timely maintenance support and spare parts enable rapid recovery from failures induced by uncontrolled resource consumption, shortening the impact window of denial-of-service attacks.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Pre-agreed severity-based prioritization and resource allocation during incident triage reduce the likelihood that an attacker-induced resource exhaustion will overwhelm the organization before corrective action is taken.

finds

Early notification of anomalous resource consumption or system malfunctions enables throttling or isolation before availability is lost.

A.8.15 Logging partial match
finds

Specifying log storage limits and rotation procedures reduces the risk that unbounded log growth will exhaust disk or memory resources and cause denial of service.

finds

Resource-utilization monitoring and alerting on bottlenecks or overloads limits the impact of denial-of-service or resource-exhaustion attacks.

blocks

A.8.20 implements network-level protections (firewalls, segmentation, protocol hardening, monitoring, authentication of systems/devices) that can limit abuse of a resource-consuming weakness but do not stop the weakness from being exploitable; the flaw remains present in the product and can still be triggered from an authorized or internal context.

blocks

Monitoring network service usage and applying controls to restrict access when necessary limits an attacker’s ability to consume excessive resources through unrestricted or unauthenticated service calls.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-400, a class-level weakness. Rules are authored against its narrower children: CWE-770.

References