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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.2327
  Cisco Business Process Automation Privilege Escalation Vulnerabilities
                                8 July 2021

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        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
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-1576 CVE-2021-1574 

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bpa-priv-esc-dgubwbH4

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Cisco Business Process Automation Privilege Escalation Vulnerabilities

Priority:        High
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

Summary

  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:
    https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bpa-priv-esc-dgubwbH4

Affected Products

  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.

Details

  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
    unauthorized commands.

    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.

Workarounds

  o There are no workarounds that address these vulnerabilities.

Fixed Software

  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
    software license:
    https://www.cisco.com/c/en/us/products/end-user-license-agreement.html

    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
    upgrade solution.

    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
    providers.

    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
    /en/us/support/web/tsd-cisco-worldwide-contacts.html

    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
    upgrade.

    Fixed Releases

    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.

Source

  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.

URL

  o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bpa-priv-esc-dgubwbH4

Revision History

  o +----------+---------------------------+----------+--------+--------------+
    | Version  |        Description        | Section  | Status |     Date     |
    +----------+---------------------------+----------+--------+--------------+
    | 1.0      | Initial public release.   | -        | Final  | 2021-JUL-07  |
    +----------+---------------------------+----------+--------+--------------+

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