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CVE Record

CVE-2020-8422: An authorization issue was discovered in the Credential Manager feature in Zoho ManageEngine Remote Access...

An authorization issue was discovered in the Credential Manager feature in Zoho ManageEngine Remote Access Plus before 10.0.450. A user with the Guest role can extract the collection of all defined credentials of remote machines: the credential name, credential type, user name, domain/workgroup name, and description (but not the password).

MediumCVSS 4.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-8422 lets a low-privileged Guest user in Zoho ManageEngine Remote Access Plus view metadata for all stored remote-machine credentials. The password is not exposed, but usernames, domains, credential names, types, and descriptions can still reveal sensitive operational information useful for reconnaissance.

Executive priority

Treat this as a moderate-priority cleanup item, not an emergency based on provided evidence. Prioritize remediation where Remote Access Plus manages privileged systems, has many Guest users, or exposes management access broadly.

Technical view

The issue affects the Credential Manager feature in Zoho ManageEngine Remote Access Plus before 10.0.450. It is an authorization flaw with network attack vector, low attack complexity, required low privileges, no user interaction, and low confidentiality impact. Integrity and availability are not identified as impacted.

Likely exposure

Exposure is limited to organizations running ManageEngine Remote Access Plus versions before 10.0.450 with Guest-role access enabled or assigned. Internet exposure is not required by the CVE, but reachable management interfaces increase practical risk.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability is still operationally relevant because credential metadata can help attackers map accounts, domains, and remote-access targets.

Researcher notes

The CVE record provides limited product-version detail and no CWE. Key constraints are clear: Guest role, Credential Manager, metadata-only disclosure, versions before 10.0.450. Do not assume password exposure or active exploitation without new evidence.

Mitigation direction

  • Upgrade ManageEngine Remote Access Plus to version 10.0.450 or later.
  • Review vendor guidance for any additional hardening or fixed-build details.
  • Restrict or remove Guest-role access where it is not operationally required.
  • Review stored credential descriptions for unnecessary sensitive operational detail.
  • Rotate or review exposed accounts if metadata disclosure creates material risk.

Validation and detection

  • Identify all ManageEngine Remote Access Plus deployments and installed versions.
  • Flag any instance running a version before 10.0.450.
  • Review accounts assigned the Guest role or equivalent low-privilege roles.
  • Confirm remediated Guest users cannot enumerate Credential Manager metadata.
  • Review available audit logs for Guest access to Credential Manager.
Prepared
Confidence
high
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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.

description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-8422 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.3 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AC:L/AV:N/A:N/C:L/I:N/PR:L/S:U/UI:N

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.3CVSS 3.0MediumCVSS:3.0/AC:L/AV:N/A:N/C:L/I:N/PR:L/S:U/UI:N2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.3Medium
CVSS 3.0 vector shape for CVE-2020-8422Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AC:L/AV:N/A:N/C:L/I:N/PR:L/S:U/UI:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.