CVE-2018-15439
highPriorität · beachten · 66OT-Risiko · hochEPSS 0.497 · 99. PerzentilExploit · waffenfähigEURUUSEPSS · bewertet 2026-10-27
A vulnerability in the Cisco Small Business Switches software could allow an unauthenticated, remote attacker to bypass the user authentication mechanism of an affected device. The vulnerability exists because under specific circumstances, the affected software enables a privileged user account without notifying administrators of the system. An attacker could exploit this vulnerability by using this account to log in to an affected device and execute commands with full admin rights. Cisco has not released software updates that address this vulnerability. This advisory will be updated with fixed software information once fixed software becomes available. There is a workaround to address this vulnerability.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenCisco 350 Series Managed Switches cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - BehobenCisco 350X Series Stackable Managed Switches cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - BehobenCisco 550X Series Stackable Managed Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - BehobenCisco Small Business 300 Series Managed Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - BehobenCisco Small Business 500 Series Stackable Managed Switches cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - WorkaroundCisco 350 Series Managed Switches cisco_csaf
The workaround consists of adding at least one user account with access privilege set to level 15 in the device configuration. The following example shows how to configure an account by using admin as user ID, setting the access privilege to level 15, and defining the password by replacing <strong_password> with a complex password chosen by the user. By adding this user account, the default privileged account will be disabled. Switch# configure terminal Switch(config)# username admin privilege 15 password <strong_password> The command show running-config | include privilege 15 will now produce the following output: Switch# show running-config | include privilege 15 username admin password encrypted <encrypted-password> privilege 15
- WorkaroundCisco 350X Series Stackable Managed Switches cisco_csaf
The workaround consists of adding at least one user account with access privilege set to level 15 in the device configuration. The following example shows how to configure an account by using admin as user ID, setting the access privilege to level 15, and defining the password by replacing <strong_password> with a complex password chosen by the user. By adding this user account, the default privileged account will be disabled. Switch# configure terminal Switch(config)# username admin privilege 15 password <strong_password> The command show running-config | include privilege 15 will now produce the following output: Switch# show running-config | include privilege 15 username admin password encrypted <encrypted-password> privilege 15
- WorkaroundCisco 550X Series Stackable Managed Switchescisco_csaf
The workaround consists of adding at least one user account with access privilege set to level 15 in the device configuration. The following example shows how to configure an account by using admin as user ID, setting the access privilege to level 15, and defining the password by replacing <strong_password> with a complex password chosen by the user. By adding this user account, the default privileged account will be disabled. Switch# configure terminal Switch(config)# username admin privilege 15 password <strong_password> The command show running-config | include privilege 15 will now produce the following output: Switch# show running-config | include privilege 15 username admin password encrypted <encrypted-password> privilege 15
- WorkaroundCisco Small Business 300 Series Managed Switchescisco_csaf
The workaround consists of adding at least one user account with access privilege set to level 15 in the device configuration. The following example shows how to configure an account by using admin as user ID, setting the access privilege to level 15, and defining the password by replacing <strong_password> with a complex password chosen by the user. By adding this user account, the default privileged account will be disabled. Switch# configure terminal Switch(config)# username admin privilege 15 password <strong_password> The command show running-config | include privilege 15 will now produce the following output: Switch# show running-config | include privilege 15 username admin password encrypted <encrypted-password> privilege 15
- WorkaroundCisco Small Business 500 Series Stackable Managed Switches cisco_csaf
The workaround consists of adding at least one user account with access privilege set to level 15 in the device configuration. The following example shows how to configure an account by using admin as user ID, setting the access privilege to level 15, and defining the password by replacing <strong_password> with a complex password chosen by the user. By adding this user account, the default privileged account will be disabled. Switch# configure terminal Switch(config)# username admin privilege 15 password <strong_password> The command show running-config | include privilege 15 will now produce the following output: Switch# show running-config | include privilege 15 username admin password encrypted <encrypted-password> privilege 15
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 9.3–9.8
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
Exploits (1)
Öffentlicher Proof-of-Concept- und Exploit-Code.
betroffene Produkte (127)
Betroffene Produkte und Versionsbereiche.
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- cisco-sa-20181107-sbsw-privaccCisco Small Business Switches Privileged Access Vulnerability2018-11-07csaf · cisco_csafUS
A vulnerability in the Cisco Small Business Switches software could allow an unauthenticated, remote attacker to bypass the user authentication mechanism of an affected device. The vulnerability exists because under specific circumstances, the affected software enables a privileged user account without notifying administrators of the system. An attacker could exploit this vulnerability by using this account to log in to an affected device and execute commands with full admin rights. Cisco has not released software updates that address this vulnerability. This advisory will be updated with fixed software information once fixed software becomes available. There is a workaround to address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-sbsw-privacc ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-sbsw-privacc"]
auch bekannt als (5)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (6)
Externe Belege — Patches, Meldungen, Analysen.
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-sbsw-privacccnnvd
- https://www.securityfocus.com/bid/105873cnnvd
- http://www.securityfocus.com/bid/105873enisa_euvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-sbsw-privaccenisa_euvd
- http://www.securityfocus.com/bid/105873Third Party AdvisoryVDB Entrynvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-sbsw-privaccVendor Advisorynvd
Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.
Kostenloser Scan