PT-2019-5336 · Cisco · Cisco Ucs Director+1

Mr_Me + 1 · Published 2019-12-20 · Updated 2020-06-05 · CVE-2020-3243

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Cisco UCS Director (affected versions not specified) Cisco UCS Director Express for Big Data (affected versions not specified)

Description The issue is related to insufficient input validation in the REST API of Cisco UCS Director and Cisco UCS Director Express for Big Data. This may allow a remote attacker to bypass authentication or conduct directory traversal attacks on an affected device by sending a specially crafted request. The vulnerability can be exploited to elevate privileges.

Recommendations For Cisco UCS Director, consider disabling the REST API until a patch is available. For Cisco UCS Director Express for Big Data, restrict access to the REST API to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Improper Privilege Management

Weakness Enumeration

CWE-20

CWE-269

Related Identifiers

BDU:2020-02405

CVE-2020-3243

ZDI-20-540

Affected Products

Cisco Ucs Director

Cisco Ucs Director Express For Big Data

References · 8

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/cisco_ucs_cloupia_script_rce.rb · Exploit
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsd-mult-vulns-UNfpdW4E · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-3243 · Security Note
• https://bdu.fstec.ru/vul/2020-02405 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-20-540 · Security Note
• https://osv.dev/vulnerability/CVE-2020-3243 · Vendor Advisory
• http://packetstormsecurity.com/files/157955/Cisco-UCS-Director-Cloupia-Script-Remote-Code-Execution.html · Note
• https://t.me/cybersecuritytechnologies/976 · Telegram Post