CVE-2021-1576Network attack vector

Administrator impersonation via exposed logging data

Published Jul 8, 2021 · Updated Nov 7, 2024

Improper authorization in Cisco Business Process Automation before 3.1 allows remote authenticated users to retrieve sensitive log data. The web management interface lets valid users access logging-subsystem data without enforcing authorization for the requested logs. The system is exposed only while a legitimate user has an active session, and the retrieved data enables privileged-user impersonation and Administrator access.

CVSS severity8.8
High
EPSS probability1.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Cisco Business Process Automation before 3.1 allows remote authenticated users to retrieve sensitive log data. The web management interface lets valid users access logging-subsystem data without enforcing authorization for the requested logs. The system is exposed only while a legitimate user has an active session, and the retrieved data enables privileged-user impersonation and Administrator access.

The record

CVE
CVE-2021-1576
Published
Jul 8, 2021
Updated
Nov 7, 2024
Vendor
ClamAV
Product
Cisco Business Process Automation
Classifications
CWE-285, CWE-798, T1552
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 8, 2021CVE publishedPublication date reported by the CVE source.
  2. Nov 7, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Business Process Automationversion=n/a

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
8.8Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X

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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
CWE-798Use of Hard-coded Credentials
T1552Unsecured Credentials

Public exploit references

No public exploit references are available in this record.

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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