CVE-2023-36851 is a critical missing authentication vulnerability in Juniper Networks Junos OS on SRX Series devices. An unauthenticated, network-based attacker can exploit a specific J-Web request (webauth_operation.php) to upload and download arbitrary files, compromising file system integrity and confidentiality. This medium-severity vulnerability (CVSS 5.3) has a low attack complexity and does not require user interaction. It is actively exploited in the wild, as indicated by its inclusion in CISA's KEV catalog and significant community discussion, despite the absence of public exploit code in Metasploit, Nuclei, or ExploitDB.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
21.2CPE matchmatch criteria | cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:* | ||
21.2CPE matchmatch criteria | cpe:2.3:o:juniper:junos:21.2:r1:*:*:*:*:*:* | ||
21.2CPE matchmatch criteria | cpe:2.3:o:juniper:junos:21.2:r1-s1:*:*:*:*:*:* | ||
21.2CPE matchmatch criteria | cpe:2.3:o:juniper:junos:21.2:r1-s2:*:*:*:*:*:* | ||
21.2CPE matchmatch criteria | cpe:2.3:o:juniper:junos:21.2:r2:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.