CVE-2020-35992Public exploitNetwork attack vector

Database credential disclosure via static encryption key

Published Aug 23, 2022 · Updated Aug 4, 2024

Credential exposure in Fiserv Prologue through 2020-12-16 allows attackers with appconfig.ini access to recover database passwords. Prologue encrypts the LogPassword value with a static key shared across installations, allowing the stored ciphertext to be decrypted offline. Configuration-file access is required; recovered credentials expose customer financial records and, where enabled, permit remote database login.

CVSS severity6.5
Medium
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in Fiserv Prologue through 2020-12-16 allows attackers with appconfig.ini access to recover database passwords. Prologue encrypts the LogPassword value with a static key shared across installations, allowing the stored ciphertext to be decrypted offline. Configuration-file access is required; recovered credentials expose customer financial records and, where enabled, permit remote database login.

The record

CVE
CVE-2020-35992
Published
Aug 23, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-522, T1552.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 23, 2022CVE 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
T1552.001Unsecured Credentials: Credentials In Files

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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