What is the CVSS score of CVE-2024-28026?

CVE-2024-28026 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 5.8%.

Is there a public PoC exploit available for CVE-2024-28026?

Yes, a public proof-of-concept exploit is available for CVE-2024-28026. Prioritise patching immediately. EPSS: 5.8%.

Mc Lr Router Firmware CVE-2024-28026

HIGH

OS Command Injection (CWE-78)

2024-11-21 talos-cna@cisco.com

Command Injection Mc Lr Router Firmware

7.2

CVSS 3.1 · Vendor: cisco

Severity by source

Vendor (cisco) PRIMARY

7.2 HIGH

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (cisco) · only source for this CVE.

CVSS VectorVendor: cisco

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Nov 21, 2024 - 15:15 cve.org

HIGH 7.2

DescriptionCVE.org

Three OS command injection vulnerabilities exist in the web interface I/O configuration functionality of MC Technologies MC LR Router 2.10.5. A specially crafted HTTP request can lead to arbitrary command execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.This vulnerability refers to the authenticated OS Command Injection that occurs through the attacker-controlled out1 parameter, at offset 0x8efc.

int out_ret = sscanf(current_param->key, "out%u", &io_idx); if (out_ret 1 && io_idx 1) { // [4] Similar to 3, but out1 instead of btn1 if (asprintf(&command, "/usr/sbin/vout %s %u vo_manual", current_param->value, 1) > 0) { system(command); return -1; } }

AnalysisAI

Three OS command injection vulnerabilities exist in the web interface I/O configuration functionality of MC Technologies MC LR Router 2.10.5. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. Three OS command injection vulnerabilities exist in the web interface I/O configuration functionality of MC Technologies MC LR Router 2.10.5. A specially crafted HTTP request can lead to arbitrary command execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.This vulnerability refers to the authenticated OS Command Injection that occurs through the attacker-controlled out1 parameter, at offset 0x8efc. int out_ret = sscanf(current_param->key, "out%u", &io_idx); if (out_ret 1 && io_idx 1) { // [4] Similar to 3, but out1 instead of btn1 if (asprintf(&command, "/usr/sbin/vout %s %u vo_manual", current_param->value, 1) > 0) { system(command); return -1; } } Affected products include: Mc-Technologies Mc Lr Router Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.