Junos OS: authd allows assignment of IP address requested by DHCP subscriber logging in…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
On MX Series and M120/M320 platforms configured in a Broadband Edge (BBE) environment, subscribers logging in with DHCP Option 50 to request a specific IP address will be assigned the requested IP address, even if there is a static MAC to IP address binding in the access profile. In the problem scenario, with a hardware-address and IP address configured under address-assignment pool, if a subscriber logging in with DHCP Option 50, the subscriber will not be assigned an available address from the matched pool, but will still get the requested IP address. A malicious DHCP subscriber may be able to utilize this vulnerability to create duplicate IP address assignments, leading to a denial of service for valid subscribers or unauthorized information disclosure via IP address assignment spoofing. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S2, 15.1R8; 16.1 versions prior to 16.1R4-S12, 16.1R7-S2, 16.1R8; 16.2 versions prior to 16.2R2-S7, 16.2R3; 17.1 versions prior to 17.1R2-S9, 17.1R3; 17.2 versions prior to 17.2R1-S7, 17.2R2-S6, 17.2R3; 17.3 versions prior to 17.3R2-S4, 17.3R3; 17.4 versions prior to 17.4R2; 18.1 versions prior to 18.1R2-S3, 18.1R3.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Juniper | Junos OS | 15.1 to before 15.1R7-S2, 15.1R8; 16.1 to before 16.1R4-S12, 16.1R7-S2, 16.1R8; 16.2 to before 16.2R2-S7, 16.2R3; 17.1 to before 17.1R2-S9, 17.1R3; 17.2 to before 17.2R1-S7, 17.2R2-S6, 17.2R3; 17.3 to before 17.3R2-S4, 17.3R3; 17.4 to before 17.4R2; 18.1 to before 18.1R2-S3, 18.1R3 | 15.1R7-S2, 15.1R8, 16.1R4-S12, 16.1R7-S2, 16.1R8, 16.2R2-S7, 16.2R3, 17.1R2-S9, 17.1R3, 17.2R1-S7, 17.2R2-S6, 17.2R3, 17.3R2-S4, 17.3R3, 17.4R2, 18.1R2-S3, 18.1R3 | Patch available | CNA |
- Junos OS VendorJuniper Affected 15.1 to before 15.1R7-S2, 15.1R8; 16.1 to before 16.1R4-S12, 16.1R7-S2, 16.1R8; 16.2 to before 16.2R2-S7, 16.2R3; 17.1 to before 17.1R2-S9, 17.1R3; 17.2 to before 17.2R1-S7, 17.2R2-S6, 17.2R3; 17.3 to before 17.3R2-S4, 17.3R3; 17.4 to before 17.4R2; 18.1 to before 18.1R2-S3, 18.1R3 Fixed in 15.1R7-S2, 15.1R8, 16.1R4-S12, 16.1R7-S2, 16.1R8, 16.2R2-S7, 16.2R3, 17.1R2-S9, 17.1R3, 17.2R1-S7, 17.2R2-S6, 17.2R3, 17.3R2-S4, 17.3R3, 17.4R2, 18.1R2-S3, 18.1R3 Patch available CNA
CPE configurations NVD · 27
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:15.1:*:*:*:*:*:*:* | 15.1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1:f2:*:*:*:*:*:* | 15.1 f2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1:f3:*:*:*:*:*:* | 15.1 f3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1:f4:*:*:*:*:*:* | 15.1 f4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1:f5:*:*:*:*:*:* | 15.1 f5 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1:f6:*:*:*:*:*:* | 15.1 f6 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1:r1:*:*:*:*:*:* | 15.1 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1:r2:*:*:*:*:*:* | 15.1 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1:r3:*:*:*:*:*:* | 15.1 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:* | 15.1 r4 | Vulnerable | Juniper |
- cpe:2.3:o:juniper:junos:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1:f2:*:*:*:*:*:* Versions 15.1 f2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1:f3:*:*:*:*:*:* Versions 15.1 f3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1:f4:*:*:*:*:*:* Versions 15.1 f4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1:f5:*:*:*:*:*:* Versions 15.1 f5 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1:f6:*:*:*:*:*:* Versions 15.1 f6 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1:r1:*:*:*:*:*:* Versions 15.1 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1:r2:*:*:*:*:*:* Versions 15.1 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1:r3:*:*:*:*:*:* Versions 15.1 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:* Versions 15.1 r4 Vulnerable ·Juniper
Show 17 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:* | 15.1 r5 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1:r6:*:*:*:*:*:* | 15.1 r6 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:16.1:*:*:*:*:*:*:* | 16.1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:* | 16.1 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:16.1:r2:*:*:*:*:*:* | 16.1 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:16.1:r3:*:*:*:*:*:* | 16.1 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:16.2:*:*:*:*:*:*:* | 16.2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:16.2:r1:*:*:*:*:*:* | 16.2 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:17.1:*:*:*:*:*:*:* | 17.1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:17.1:r1:*:*:*:*:*:* | 17.1 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:17.2:*:*:*:*:*:*:* | 17.2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:17.3:*:*:*:*:*:*:* | 17.3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:17.3:r1:*:*:*:*:*:* | 17.3 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:17.4:*:*:*:*:*:*:* | 17.4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:* | 17.4 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.1:*:*:*:*:*:*:* | 18.1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:* | 18.1 r1 | Vulnerable | Juniper |
- cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:* Versions 15.1 r5 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1:r6:*:*:*:*:*:* Versions 15.1 r6 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:16.1:*:*:*:*:*:*:* Versions 16.1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:* Versions 16.1 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:16.1:r2:*:*:*:*:*:* Versions 16.1 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:16.1:r3:*:*:*:*:*:* Versions 16.1 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:16.2:*:*:*:*:*:*:* Versions 16.2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:16.2:r1:*:*:*:*:*:* Versions 16.2 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:17.1:*:*:*:*:*:*:* Versions 17.1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:17.1:r1:*:*:*:*:*:* Versions 17.1 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:17.2:*:*:*:*:*:*:* Versions 17.2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:17.3:*:*:*:*:*:*:* Versions 17.3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:17.3:r1:*:*:*:*:*:* Versions 17.3 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:17.4:*:*:*:*:*:*:* Versions 17.4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:* Versions 17.4 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.1:*:*:*:*:*:*:* Versions 18.1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:* Versions 18.1 r1 Vulnerable ·Juniper
Remediation
- Fix · CNA Junos OS (Juniper Networks) Fixed in 15.1R7-S2, 15.1R8, 16.1R4-S12, 16.1R7-S2, 16.1R8, 16.2R2-S7, 16.2R3, 17.1R2-S9, 17.1R3, 17.2R1-S7, 17.2R2-S6, 17.2R3, 17.3R2-S4, 17.3R3, 17.4R2, 18.1R2-S3, 18.1R3
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0057
- 2026-10-03 Alias added: GHSA-6ffm-w2x6-jcwh
References
Advisory 1
More Juniper Junos vulnerabilities
- TI-2023-18638 Junos OS: EX and SRX Series: A PHP vulnerability in J-Web allows an unauthenticated to… KEVCVSS 3.1CRITICAL 9.8
- TI-2020-01585 Out of Cycle Security Advisory: Junos OS: Security vulnerability in J-Web and web based (HTTP/HTTPS) services KEVCVSS 3.1CRITICAL 9.8
- TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
- TI-2025-15550 Junos OS: An local attacker with shell access can execute arbitrary code KEVCVSS 4.0MEDIUM 6.7
- TI-2023-18644 Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload and download arbitrary files KEVCVSS 3.1MEDIUM 5.3
- TI-2023-18640 Junos OS: EX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files KEVCVSS 3.1MEDIUM 5.3
Sources
- CVE-2018-0057 · CVE Program
- CVE-2018-0057 · NVD
- FIRST EPSS
- GHSA-6ffm-w2x6-jcwh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences