CVE-2018-0001
Junos: Unauthenticated Remote Code Execution through J-Web interface
- Published
- Updated
- Reserved
- Assigned by
- juniper
Description
A remote, unauthenticated attacker may be able to execute code by exploiting a use-after-free defect found in older versions of PHP through injection of crafted data via specific PHP URLs within the context of the J-Web process. Affected releases are Juniper Networks Junos OS: 12.1X46 versions prior to 12.1X46-D67; 12.3 versions prior to 12.3R12-S5; 12.3X48 versions prior to 12.3X48-D35; 14.1 versions prior to 14.1R8-S5, 14.1R9; 14.1X53 versions prior to 14.1X53-D44, 14.1X53-D50; 14.2 versions prior to 14.2R7-S7, 14.2R8; 15.1 versions prior to 15.1R3; 15.1X49 versions prior to 15.1X49-D30; 15.1X53 versions prior to 15.1X53-D70.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| juniperCNA (assigner) | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 6.3% · top 6.3% of all CVEs (4 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- Remote code execution
- CWE-416 (opens in a new tab)All about CWE-416 and its CVEs
Affected products
- affected 12.1X46 – < 12.1X46-D67
- affected 12.3 – < 12.3R12-S5
- affected 12.3X48 – < 12.3X48-D35
- affected 14.1 – < 14.1R8-S5, 14.1R9
- affected 14.1X53 – < 14.1X53-D44, 14.1X53-D50
- affected 14.2 – < 14.2R7-S7, 14.2R8
- affected 15.1 – < 15.1R3
- affected 15.1X49 – < 15.1X49-D30
- affected 15.1X53 – < 15.1X53-D70
What to do
Solution: The following software releases have been updated to resolve this specific issue: 12.1X46-D67, 12.3R12-S8*, 12.3X48-D55, 14.1R8-S5, 14.1R9, 14.1X53-D44, 14.1X53-D50, 14.2R7-S7, 14.2R8, 15.1F5-S8, 15.1F6-S8, 15.1R5-S6, 15.1R7, 15.1X49-D100, 15.1X53-D70, 16.1R4-S6, 16.1R5, 16.2R2-S2, 16.2R3, 17.1R2-S5*, 17.1R3*, 17.2R2, 17.3R1, and all subsequent releases. *Pending release NOTE: While Junos OS 12.3R12-S5, 12.3X48-D35, 15.1F2+, 15.1R3, 15.1X49-D30, and all subsequent releases are not vulnerable, this issue has been proactively resolved.
Workaround: Disable J-Web, or limit access to only trusted hosts.
Exploitation: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
References (3)
- 1040180 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://kb.juniper.net/JSA10828 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 103092 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-0001)Record last updated .