Lyrie
Active Exploitation
ACTIVELY EXPLOITED3 sources verified·1 min read
By Lyrie Threat Intelligence·11/13/2023

CVE-2023-36847 added to CISA KEV: Juniper Junos OS

Status: ✅ Confirmed exploited in the wild

Date added: 2023-11-13

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Due date: 2023-11-17

Why this matters

Juniper Junos OS on EX Series contains a missing authentication for critical function vulnerability that allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to installAppPackage.php that doesn't require authentication, an attacker is able to upload arbitrary files via J-Web, leading to a loss of integrity for a certain part of the file system, which may allow chaining to other vulnerabilities.

Sources

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