PT-2023-6317 · Cisco · Cisco Ios Xe

Published 2023-10-16 · Updated 2026-06-07 · CVE-2023-20273

Positive Technologies (AI Summary)

CVSS v2.0

8.3

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco IOS XE Software (affected versions not specified)

Description A flaw exists in the web UI feature of Cisco IOS XE Software that could allow an authenticated, remote attacker to inject commands with root privileges. This is due to insufficient input validation. The vulnerability is actively exploited in attacks, with reports indicating the deployment of a malicious Lua-based implant on susceptible devices. The attackers are leveraging this issue to escalate privileges and write malicious implants to the file system. The vulnerability affects devices worldwide. The web UI is the entry point for exploitation, allowing attackers to inject commands into the underlying operating system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

OS Command Injection

Improper Privilege Management

Weakness Enumeration

CWE-78

CWE-269

Related Identifiers

BDU:2023-07028

CVE-2023-20273

Affected Products

Cisco Ios Xe

References · 157

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/misc/cisco_ios_xe_rce.rb · Exploit
• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/admin/http/cisco_ios_xe_os_exec_cve_2023_20273.rb · Exploit
• 🔥 https://github.com/smokeintheshell/CVE-2023-20273 · Exploit
• 🔥 http://packetstormsecurity.com/files/175674/Cisco-IOX-XE-Unauthenticated-Remote-Code-Execution.html · Exploit
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-webui-privesc-j22SaA4z · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/700459 · Security Note
• https://osv.dev/vulnerability/CVE-2023-20273 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-20273 · Security Note
• https://bdu.fstec.ru/vul/2023-07028 · Security Note
• https://twitter.com/matthewjetthall/status/1718001640047862044 · Twitter Post
• https://twitter.com/SI_FalconTeam/status/1720462017042002345 · Twitter Post
• https://twitter.com/Reportcasebase/status/1752356327228121579 · Twitter Post
• https://twitter.com/RecordedFuture/status/1889980892606615780 · Twitter Post
• https://twitter.com/inidreamtheater/status/1716414909552980337 · Twitter Post
• https://twitter.com/CommunicateCyb/status/1719737698401874354 · Twitter Post