Junos OS vulnerabilities

A vulnerability in the Web-Filtering module of Junos OS on SRX Series allows an unauthenticated network-based attacker to cause a Denial-of-Service (DoS). A specially crafted SSL packet causes an FPC crash and restart.

A vulnerability in Juniper Junos OS on EX4000 models with 48 ports (EX4000-48T, EX4000-48P, EX4000-48MP) allows an unauthenticated network-based attacker to cause an FXPC crash and restart by sending a high volume of traffic to the device. This leads to a complete service outage until the device automatically restarts.

A vulnerability in Junos OS on SRX and MX devices with MX-SPC3 or MS-MPC service cards causes an infinite loop in the flow management process (flowd or mspmand) after receiving specific SIP messages over TCP. An unauthenticated attacker can send multiple such messages, leading to watchdog timer expiration and process crash, resulting in a Denial of Service (DoS). The issue only occurs over TCP, not UDP.

A Buffer Over-read vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). When an affected device receives a BGP update with a set of specific optional transitive attributes over an established peering session, rpd will crash and restart when attempting to advertise the received information to another peer.

A vulnerability in the DHCP service (jdhcpd) of Junos OS and Junos OS Evolved allows a DHCP client in one subnet to exhaust the address pools of other subnets, leading to a Denial of Service (DoS) on the downstream DHCP server. The issue arises from improper handling of DHCP DISCOVER packets with Option 82 in 'forward-only' mode, which are forwarded unmodified instead of being dropped, consuming addresses from the pool.

A vulnerability in Junos OS allows unauthorized access to the operating system through certain combinations of CLI commands. Users with the appropriate permissions can achieve elevated privileges and gain complete control of the device.

An internal Junos OS sockets library is vulnerable to a buffer overflow, which may lead to a denial of service (kernel panic) or privilege escalation through local code execution. The routines are only accessible via programs running on the device.

On Juniper Networks products or platforms running Junos OS versions prior to 12.1X46-D50, 12.1X47-D40, 12.3R13, 12.3X48-D30, 13.2X51-D40, 13.3R10, 14.1R8, 14.1X53-D35, 14.1X55-D35, 14.2R5, 15.1F6, 15.1R3, 15.1X49-D30, 15.1X49-D40, 15.1X53-D35, where RIP is enabled, certain RIP advertisements may cause the RPD daemon to crash, resulting in a denial of service condition.

On Juniper Networks products running Junos OS versions prior to 12.1X46-D55, 12.1X47-D45, 12.3R13, 12.3X48-D35, 13.3R10, 14.1R8, 14.1X53-D40, 14.1X55-D35, 14.2R6, 15.1F2 or 15.1R1, where the BGP add-path feature is enabled with 'send' option or with both 'send' and 'receive' options, a network-based attacker can cause the rpd daemon to crash and restart. Repeated crashes of the rpd daemon can result in an extended denial of service condition.

On Juniper Networks products running Junos OS versions prior to 11.4R13-S3, 12.1X46-D60, 12.3R12-S2, 13.2X51-D40, 13.3R10, 14.1R8, 14.1X53-D12, 14.1X55-D35, 14.2R7, 15.1F6, 15.1R3, 15.1X49-D60, and 15.1X53-D30, when DHCPv6 is enabled, receiving a crafted DHCPv6 packet causes the jdhcpd daemon to crash and restart. Repeated crashes of the jdhcpd process may lead to an extended denial of service condition for subscribers attempting to obtain IPv6 addresses.

Juniper Networks devices running affected versions of Junos OS may be vulnerable to a crafted BGP UPDATE which can lead to a crash and restart of the routing process daemon (rpd). Repeated crashes of the rpd daemon can result in an extended denial of service condition.

Junos OS versions before 12.1X46-D45, 12.1X46-D50, 12.1X47 before 12.1X47-D35, 12.3X48 before 12.3X48-D30, 13.3 before 13.3R9-S1, 14.1 before 14.1R7, 14.2 before 14.2R6, 15.1 before 15.1F2-S5, 15.1F4 before 15.1F4-S2, 15.1R before 15.1R2-S3, 15.1 before 15.1R3, and 15.1X49 before 15.1X49-D40 allow remote attackers to cause a denial of service (kernel crash) via a crafted UDP packet destined to the interface IP address of a 64-bit OS device.

Juniper's Junos OS before versions 12.1X44-D60, 12.1X46-D40, 12.1X47-D30, 12.3R11, 12.3X48-D20, 13.2R9, 13.2X51-D39, 13.3R8, 14.1R6, 14.1X53-D30, 14.2R4-S1, 15.1R2, 15.1X49-D30, and 16.1R1 is vulnerable to a denial of service (DoS) attack caused by crafted TCP timestamps. Attackers can exploit this vulnerability to exhaust socket resources.

A stack-based buffer overflow vulnerability in the httpd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to cause remote code execution and denial of service via a configured J-Web virtual domain.

A stack-based buffer overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured BGP/EVPN peer to cause root code execution on Junos OS or an rpd crash on Junos OS Evolved via protocol-valid route advertisements for an EVPN-VPWS service.

An improper authentication vulnerability in the J-Web management interface and its NETCONF session handling of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to obtain root-level device configuration access and take over the device via a reachable J-Web HTTP or HTTPS service when web management is enabled.

A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured external BGP neighbor to execute arbitrary commands with root privileges via BMP route monitoring.

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. The issue requires IKE to be enabled with an RSA-signature IKE policy.

An improper neutralization of special elements used in an OS command ('OS command injection') vulnerability in the phone-home daemon (phcd) of Juniper Networks Junos OS and Junos OS Evolved on EX Series, SRX Series, and QFX Series allows an adjacent unauthenticated attacker to execute arbitrary commands with root privileges via a rogue DHCP server.

An Improper Authentication vulnerability in the J-Web component of Juniper Networks Junos OS allows an unauthenticated remote attacker to execute arbitrary Junos commands with root privileges via the exposed J-Web interface.

A Heap-based Buffer Overflow in the SVR component of Junos OS on SRX Series allows an unauthenticated network attacker to cause denial of service and potentially compromise confidentiality and integrity via malformed IPv4 packets.

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series with SPC3 allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). On MX Series with SPC3 line-card and source NAT configuration, when a specific malformed IPv6 packet is received, it is not dropped but instead a session is created and NAT resources are allocated. Continued receipt of such packets will eventually lead to session or resource exhaustion, which will impact all traffic through the device. To recover the device needs to be rebooted.

A stack-based buffer overflow in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent LDP peer to crash rpd or execute arbitrary code via a malformed LDP Label Mapping message.

A stack-based buffer overflow in authd of Juniper Networks Junos OS and Junos OS Evolved allows a network attacker with SNMP read access to execute code with root privileges or cause a denial of service via a specific SNMP packet when SNMP and AAA are enabled.

An out-of-bounds write in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an eBGP peer that has not negotiated four-octet-AS capability to send a specifically malformed BGP update and cause a denial of service (DoS).

A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent OSPF peer to cause a denial of service via OSPF traffic processed while OSPF Source Packet Routing best-route Prefix-SID installation is configured.

An Integer Overflow or Wraparound vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial of service via specific OSPFv2 packets sent on an OSPF-enabled interface.

A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker to cause an rpd crash via a crafted LDP packet received over an established LDP session.

An incorrect calculation vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos EVO allows a remote BGP EVPN neighbor to cause an rpd crash when SRv6 EVPN multihoming is configured.

An improper handling of length parameter inconsistency in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker sending a specifically malformed BGP EVPN multicast update that is attempted to be readvertised to cause an rpd crash.

A NULL pointer dereference in the routing-policy nexthop-ECMP matcher of Juniper Networks Junos OS and Junos OS Evolved allows a configured eBGP peer to cause a routing-daemon denial of service via a specific BGP packet received while a nexthop-ecmp qualifier is attached to a BGP import policy.

A Function Call With Incorrect Variable or Reference as Argument vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause an rpd crash via specifically malformed LSP-ping.

An improper validation of consistency within input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured BGP ISO-VPN peer to cause an rpd crash by sending a specific ISO-VPN update which is then processed by BMP route monitoring or NSR.

A NULL pointer dereference in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated remote BGP neighbor to cause a denial of service via a VPN-flowspec BGP update if it is readvertised and BMP post-policy RIB-out monitoring is configured.

A Stack-based Buffer Overflow vulnerability in the srxpfe of Juniper Networks Junos OS and Junos OS Evolved on the SRX Series. An L2-adjacent attacker can execute arbitrary code as root via high-availability fabric traffic.

A Numeric Truncation Error vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved. An unauthenticated network-based attacker can cause a denial of service via a BGP Prefix-SID route advertisement that is subsequently re-advertised.

A Heap-based Buffer Overflow vulnerability in the VXLAN Gateway Daemon (vgd) of Juniper Networks Junos OS. A malicious or compromised SDN-controller can cause a complete outage of the OVSDB control plane and possibly remote code execution.

An out-of-bounds write vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker sending a specific set of BGP communities to cause a denial of service (DoS) as rpd crashes when the graceful-shutdown sender community is added during advertisement.

A Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved. A remote network attacker can cause a denial of service via EVPN multihoming with preference-based designated-forwarder election.

An Improper Validation of Specified Quantity in Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos Evolved platforms. A configured EVPN signaling peer can cause an rpd crash via a malformed SRv6 structure carried in an EVPN route update, resulting in a denial of service affecting routing adjacencies.

An Improper Validation of Specified Quantity in Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved. A configured BGP EVPN peer can cause an rpd crash via a specifically malformed NLRI.

A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker with access to a configured BGP peering session to cause a denial of service by sending a crafted BGP route attribute, which is processed while a BGP RIB streaming telemetry subscription is active.

An Out-of-bounds Write vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker with access to a configured BGP EVPN peer to cause a denial of service via BGP EVPN route processing when the l2vpn-evpn RIB telemetry sensor is subscribed.

An Out-of-bounds Write vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a denial of service when IS-IS link protection and backup-selection are configured.

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 specific packets when the SDK service and a JDAF routing instance are enabled.

A Stack-based Buffer Overflow vulnerability in the iked IKE key-management daemon of Juniper Networks Junos OS on the SRX Series allows an authenticated remote-access VPN client to execute code with root privileges or cause denial of service via the remote-access VPN authentication and JIMS identity-publishing path.

An incomplete list of disallowed inputs vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a denial of service (DoS). When a specific, valid, optional, non-transitive BGP update is received over an established BGP session in a BGP traffic engineering scenario, RPD crashes and automatically restarts, leading to traffic impact until routing reconverges.

A NULL pointer dereference vulnerability in the DNS plugin of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a complete denial of service (DoS). When multiple DNS queries are received in a single flow session, where one query matches a Security Intelligence (SecIntel) feed and another is sent for DNS Domain Generation Algorithm (DGA) analysis, an error in processing logging of these asynchronous tasks can lead to an FPC crash.