CVE-2021-35193Public exploitNetwork attack vector

Database credential disclosure via shared client certificate

Published Jul 30, 2021 · Updated Aug 4, 2024

Authentication bypass in Patterson Eaglesoft 18 through 21 allows remote attackers to retrieve SQL database credentials. Patterson Application Service trusts a client certificate shared by customer installations running the same software version instead of binding it to one installation. A custom client can omit the client-side username and password step, authenticate with the shared certificate, and read the database connection credentials remotely.

CVSS severity7.5
High
EPSS probability1.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Patterson Eaglesoft 18 through 21 allows remote attackers to retrieve SQL database credentials. Patterson Application Service trusts a client certificate shared by customer installations running the same software version instead of binding it to one installation. A custom client can omit the client-side username and password step, authenticate with the shared certificate, and read the database connection credentials remotely.

The record

CVE
CVE-2021-35193
Published
Jul 30, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-295, T1212
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 30, 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

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NIST NVDCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-295Improper Certificate Validation
T1212Exploitation for Credential Access

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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