CVE-2020-35137Public exploitNetwork attack vector

Authentication endpoint disclosure via hardcoded discovery API key

Published Mar 29, 2021 · Updated Aug 4, 2024

Hardcoded credential use in MobileIron Mobile@Work allows remote attackers to discover customer server endpoints through its SaaS API. RegisterActivity.java embeds the key used to authorize customers/servers requests, so extracting the application reveals an accepted credential. Exposure applies only when MobileIron enables the opt-in discovery feature after a support request, and the disclosed result is the organization's authentication endpoint.

CVSS severity7.5
High
EPSS probability1.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hardcoded credential use in MobileIron Mobile@Work allows remote attackers to discover customer server endpoints through its SaaS API. RegisterActivity.java embeds the key used to authorize customers/servers requests, so extracting the application reveals an accepted credential. Exposure applies only when MobileIron enables the opt-in discovery feature after a support request, and the disclosed result is the organization's authentication endpoint.

The record

CVE
CVE-2020-35137
Published
Mar 29, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-798
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 29, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5INCIBE-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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