Summary
Juniper heeft meerdere kwetsbaarheden verholpen in Junos OS.
Details
Interpretaties
De kwetsbaarheden bevinden zich in verschillende componenten van Junos OS, waaronder de VXLAN Gateway Daemon (vgd), kmd op MX Series routers, SDK service met JDAF routing, TWAMP client (rmopd service), gRPC library, ipfd daemon op SRX Series, dot1x daemon op Fusion Aggregation Devices, routing protocol daemon (rpd) op MX Series, jdhcpd process, authd process, kernel bij Extended Echo, pkid component, UTM Anti-Spam SBL component op SRX Series, J-Web management interface, en srxpfe component op SRX Series met chassis-cluster configuratie.
Een aanvaller kan deze kwetsbaarheden misbruiken door het versturen van speciaal vervaardigde pakketten of berichten, vaak zonder authenticatie, wat kan leiden tot crashes van processen of het gehele systeem, denial of service, of in sommige gevallen uitvoering van arbitraire code met root privileges.
De kwetsbaarheden zijn specifiek gebonden aan bepaalde functies of configuraties binnen Junos OS, zoals het gebruik van Security Intelligence feeds, dot1x synchronisatie, HFRR link protection, DHCP client operaties, RADIUS authenticatie, Extended Echo feature, CMP enrollment, Anti-Spam SBL inspectie, J-Web interface, en chassis-cluster fabric traffic. Sommige kwetsbaarheden kunnen worden misbruikt door een aanvaller binnen het netwerk of door een gecompromitteerde externe entiteit zoals een SDN-controller of een RADIUS server.
Oplossingen
Juniper heeft updates uitgebracht om de kwetsbaarheden in Junos OS te verhelpen. Zie bijgevoegde referenties voor meer informatie.
Vulnerabilities 15
-
Critical 9.8
Junos OS: Unauthorized root command execution when J-Web is enabled
An Improper Authentication vulnerability in the J-Web web management component of Juniper Networks Junos OS allows an unauthenticated remote attacker to execute arbitrary Junos commands with root privileges via the exposed J-Web web interface.
-
Critical 9.8
Junos OS: Malformed Extended Echo requests cause a Routing Engine reboot when Extended Echo is enabled
An Integer Underflow vulnerability in the kernel of Juniper Networks Junos OS with Extended Echo configured allows an unauthenticated, network-based attacker to cause a denial of service by a kernel crash.
-
Critical 9.8
Junos OS: MX Series: Certificate-based IKE packets cause root-level code execution
A Stack-based Buffer Overflow vulnerability in the kmd component of Juniper Networks Junos OS on MX Series allows an unauthenticated network attacker to execute code as root via specific IKE certificate-based packets. This issue requires IKE to be enabled wit…
-
High 8.8
Junos OS: An attacker causes authd to crash when subscriber RADIUS authentication is used
A Stack-based Buffer Overflow vulnerability in the authd process of Juniper Networks Junos OS allows an attacker able to influence a configured RADIUS server to cause authd to crash or execute code with root privileges via a malicious RADIUS response.
-
High 8.8
Junos OS: An ICCP peer causes dot1xd to crash when dot1x synchronization is enabled
A Stack-based Buffer Overflow vulnerability in the dot1x daemon of Juniper Networks Junos OS devices operating as Junos Fusion Aggregation Devices allows an adjacent attacker acting as the configured ICCP peer to cause a denial of service and potentially exec…
-
High 8.8
Junos OS: Specific packets cause SDK service crash or Routing Engine compromise when the SDK service and JDAF is enabled
A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the SDK service process of Juniper Networks Junos OS allows an unauthenticated network attacker to cause a denial of service or compromise the Routing Engine by sending …
-
High 8.8
Junos OS: A crafted OVSDB message crashes vgd and allows remote code execution
A Heap-based Buffer Overflow vulnerability in the VXLAN Gateway Daemon (vgd) of Juniper Networks Junos OS allows a malicious or compromised SDN-controller to cause a complete outage of the OVSDB control plane and possibly remote code execution.
-
High 8.1
Junos OS: SRX Series: Malformed DNS packet causes service disruption when UTM Anti-Spam SBL is used
A Stack-based Buffer Overflow vulnerability in the UTM Anti-Spam SBL of Juniper Networks Junos OS on SRX series allows an unauthenticated remote attacker to cause arbitrary code execution or a denial of service via a injected malformed DNS packet when Anti-Sp…
-
High 8.1
Junos OS: SRX Series: An compromised HTTPS feed server can cause remote code execution when Security Intelligence is used
An Use of Externally-Controlled Format String vulnerability in the ipfd daemon of Juniper Networks Junos OS on SRX Series allows an unauthenticated network-based attacker to execute code with root privileges via a compromised or impersonated configured HTTPS …
-
High 7.5
Junos OS: Malformed packet causes pkid denial of service when certificate re-enrollment is used
A NULL Pointer Dereference vulnerability in the pkid component of Juniper Networks Junos OS allows an unauthenticated remote attacker to cause a denial of service via a malformed packet received during CMP enrollment or automatic certificate re-enrollment.
-
High 7.5
Junos OS: An attacker causes DHCP service disruption during DHCP client operation
A Stack-based Buffer Overflow vulnerability in the jdhcpd process of Juniper Networks Junos OS allows an unauthenticated adjacent attacker to cause a denial of service via a DHCP client response. The issue affects DHCP client operation and can interrupt relat…
-
High 7.5
Junos OS: A remote TWAMP peer causes rmopd service disruption when TWAMP-Control is used
A Reachable Assertion vulnerability in the Two-Way Active Measurement Protocol (TWAMP) client of Juniper Networks Junos OS allows an unauthenticated network-based attacker to cause rmopd service disruption via a specific TCP packet.
-
Medium 6.5
Junos OS: SRX Series: An attacker causes data-plane denial of service when chassis-cluster high availability is used
A Signed to Unsigned Conversion Error vulnerability in the srxpfe of Juniper Networks Junos OS on the SRX Series allows an adjacent attacker to cause a denial of service of the data plane via chassis-cluster fabric traffic.
-
Medium 6.5
Junos OS: MX Series: An unauthenticated network attacker causes an rpd crash when HFRR link protection is used
A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos on MX Series routers allows an unauthenticated network attacker to cause a denial of service via an eBGP route update when HFRR link protection is configured in…
-
Medium 6.5
Junos OS: An authenticated attacker causes a denial of service when the gRPC extension-service is enabled
An Improper Handling of Highly Compressed Data vulnerability in the gRPC library used by na-grpcd of Juniper Networks Junos OS allows an authenticated network-based attacker to cause a denial of service via a compressed gRPC request.
Revision history
-
#1.0.0
Initiele versie
References
-
Reference
https://supportportal.juniper.net/s/article/2026-10-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-SRX-Series-Multiple-vulnerabilities-resolved
-
Reference
https://supportportal.juniper.net/s/article/2026-10-Security-Bulletin-Junos-OS-Multiple-vulnerabilities-resolved
-
Reference
https://supportportal.juniper.net/s/article/2026-10-Security-Bulletin-Junos-OS-MX-Series-Multiple-vulnerabilities-resolved