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AUSCERT External Security Bulletin Redistribution
Cisco Business Process Automation Privilege Escalation Vulnerabilities
8 July 2021
AusCERT Security Bulletin Summary
Product: Cisco Business Process Automation
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Administrator Compromise -- Existing Account
Access Privileged Data -- Existing Account
CVE Names: CVE-2021-1576 CVE-2021-1574
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Cisco Business Process Automation Privilege Escalation Vulnerabilities
Advisory ID: cisco-sa-bpa-priv-esc-dgubwbH4
First Published: 2021 July 7 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvx72502 CSCvx72508 CSCvx72516
CVE Names: CVE-2021-1574 CVE-2021-1576
CWEs: CWE-285 CWE-798
o Multiple vulnerabilities in the web-based management interface of Cisco
Business Process Automation (BPA) could allow an authenticated, remote
attacker to elevate privileges to Administrator .
These vulnerabilities are due to improper authorization enforcement for
specific features and for access to log files that contain confidential
information. An attacker could exploit these vulnerabilities either by
submitting crafted HTTP messages to an affected system and performing
unauthorized actions with the privileges of an administrator, or by
retrieving sensitive data from the logs and using it to impersonate a
legitimate privileged user. A successful exploit could allow the attacker
to elevate privileges to Administrator .
Cisco has released software updates that address these vulnerabilities.
There are no workarounds that address these vulnerabilities.
This advisory is available at the following link:
o Vulnerable Products
These vulnerabilities affect Cisco BPA releases earlier than Release 3.1.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by these vulnerabilities.
o This advisory describes two vulnerabilities in Cisco BPA that could allow
an attacker to elevate privileges to administrator .
For CVE-2021-1574, an attacker with valid user credentials could execute
For CVE-2021-1576, an attacker with valid credentials could access the
logging subsystem of an affected system and retrieve sensitive data. The
system is vulnerable only while a legitimate user maintains an active
session on the system.
Both vulnerabilities have CVSS scores of 8.8.
o There are no workarounds that address these vulnerabilities.
o Cisco has released free software updates that address the vulnerabilities
described in this advisory. Customers may only install and expect support
for software versions and feature sets for which they have purchased a
license. By installing, downloading, accessing, or otherwise using such
software upgrades, customers agree to follow the terms of the Cisco
Additionally, customers may only download software for which they have a
valid license, procured from Cisco directly, or through a Cisco authorized
reseller or partner. In most cases this will be a maintenance upgrade to
software that was previously purchased. Free security software updates do
not entitle customers to a new software license, additional software
feature sets, or major revision upgrades.
When considering software upgrades , customers are advised to regularly
consult the advisories for Cisco products, which are available from the
Cisco Security Advisories page , to determine exposure and a complete
In all cases, customers should ensure that the devices to be upgraded
contain sufficient memory and confirm that current hardware and software
configurations will continue to be supported properly by the new release.
If the information is not clear, customers are advised to contact the Cisco
Technical Assistance Center (TAC) or their contracted maintenance
Customers Without Service Contracts
Customers who purchase directly from Cisco but do not hold a Cisco service
contract and customers who make purchases through third-party vendors but
are unsuccessful in obtaining fixed software through their point of sale
should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c
Customers should have the product serial number available and be prepared
to provide the URL of this advisory as evidence of entitlement to a free
Cisco fixed these vulnerabilities in Cisco BPA releases 3.1 and later.
Exploitation and Public Announcements
o The Cisco Product Security Incident Response Team (PSIRT) is not aware of
any public announcements or malicious use of the vulnerabilities that are
described in this advisory.
o These vulnerabilities were found during internal security testing.
Cisco Security Vulnerability Policy
o To learn about Cisco security vulnerability disclosure policies and
publications, see the Security Vulnerability Policy . This document also
contains instructions for obtaining fixed software and receiving security
vulnerability information from Cisco.
| Version | Description | Section | Status | Date |
| 1.0 | Initial public release. | - | Final | 2021-JUL-07 |
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