Active exploitation of Cisco IOS XE Software Web Management User Interface vulnerabilities
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2021-1435 | A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to inject arbitrary commands that can be executed as the… | 7.2 | 8% | ||
| CVE-2023-20198 | Unauthenticated Privilege Escalation in Cisco IOS XE Web UI (Actively Exploited) | 10.0 | 100% | KEV | KEV |
| CVE-2023-20273 | Authenticated Command Injection (Root) in Cisco IOS XE Web UI | 7.2 | 93% | KEV | KEV |
Indicators of compromise
auto-extracted · verify before use · export allAll| Type | Indicator | Context |
|---|---|---|
| ipv4 | 154.53.56.231 | e name “cisco_support” from a second suspicious IP address (154.53.56[.]231). Unlike the September case, this October activity includ |
| ipv4 | 5.149.249.74 | he username “cisco_tac_admin” from a suspicious IP address (5.149.249[.]74). Instances of this activity ended on Oct. 1, and we did |
| sha1 | 0ff4fbf0ecffa77ce8d3852a29263e263838e9bb | address of the device to check: curl -k -H "Authorization: 0ff4fbf0ecffa77ce8d3852a29263e263838e9bb" -X POST "https[:]//DEVICEIP/webui/logoutconfirm.html?logon |
From the original article
11 min read at blog.talosintelligence.com
Nov. 02 : Identified a third version of the BadCandy implant. Added expected response from the new version of the implant against one of the HTTP requests used to check for infected device.
blog.talosintelligence.com
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