SB2019101402 - Multiple vulnerabilities in Juniper Junos OS
Published: October 14, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 24 secuirty vulnerabilities.
1) Input validation error (CVE-ID: CVE-2019-0063)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when an MX Series Broadband Remote Access Server (BRAS) is configured as a Broadband Network Gateway (BNG) with DHCPv6 enabled. A remote attacker can send a specially crafted DHCP response message on a subscriber interface, crash jdhcpd and cause an extended denial of service condition on the target system.
2) Input validation error (CVE-ID: CVE-2019-0064)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing TCP packets if "set security zones security-zone <zone> tcp-rst" is configured. A remote attacker can send a specially crafted TCP packet, crash the flowd process and cause a denial of service on the target system.
Note: This vulnerability affects only Junos OS on SRX 5000 Series.
3) Input validation error (CVE-ID: CVE-2019-0065)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing SIP packets. A remote attacker can send a specially crafted SIP packet, crash the MS-PIC component on MS-MIC or MS-MPC and cause a sustained denial of service condition on the target sysem.
Note: This issue affects Junos OS on MX Series when the SIP ALG is enabled.
4) Input validation error (CVE-ID: CVE-2019-0066)
The vulnerability allows a remote attacker to cause a denial of service (DoS) condition on the target system.
The vulnerability exists due to an unexpected status return value weakness in the Next-Generation Multicast VPN (NG-mVPN) service. A remote attacker can send a specially crafted IPv4 packet to the device running BGP and cause a denial of service condition and core the routing protocol daemon (rpd) process.
5) Input validation error (CVE-ID: CVE-2019-0067)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when receipt of a specific link-local IPv6 packet destined to the RE. A remote attacker on adjacent network can send a specially crafted IPv6 packet, repeatedly crash the system and restart (vmcore) and cause a prolonged denial of service condition on the target system.
Note: This issue affects Junos OS devices with Multi-Chassis Link Aggregation Group (MC-LAG) enabled.
6) Input validation error (CVE-ID: CVE-2019-0068)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when the SRX flowd process processing specific multicast packets. A remote attacker on adjacent network can send specific multicast packets and repeatedly crash the target application.
Note: This vulnerability affects Junos OS on SRX Series.
7) Cleartext storage of sensitive information (CVE-ID: CVE-2019-0069)
- 15.1X49 versions prior to 15.1X49-D110 on vSRX, SRX1500, SRX4000 Series
- 15.1X53 versions prior to 15.1X53-D234 on QFX5110, QFX5200 Series
- 15.1X53 versions prior to 15.1X53-D68 on QFX10K Series
- 17.1 versions prior to 17.1R2-S8, 17.1R3, on QFX5110, QFX5200, QFX10K Series
- 17.2 versions prior to 17.2R1-S7, 17.2R2-S6, 17.2R3 on QFX5110, QFX5200, QFX10K Series
- 17.3 versions prior to 17.3R2 on vSRX, SRX1500, SRX4000, QFX5110, QFX5200, QFX10K Series
- 14.1X53 versions prior to 14.1X53-D47 on ACX5000, EX4600, QFX5100 Series
- 15.1 versions prior to 15.1R7 on ACX5000, EX4600, QFX5100 Series
- 16.1R7 versions prior to 16.1R7 on ACX5000, EX4600, QFX5100 Series
- 17.1 versions prior to 17.1R2-S10, 17.1R3 on ACX5000, EX4600, QFX5100 Series
- 17.2 versions prior to 17.2R3 on ACX5000, EX4600, QFX5100 Series
- 17.3 versions prior to 17.3R3 on ACX5000, EX4600, QFX5100 Series
- 17.4 versions prior to 17.4R2 on ACX5000, EX4600, QFX5100 Series
- 18.1 versions prior to 18.1R2 on ACX5000, EX4600, QFX5100 Series
- 15.1X53 versions prior to 15.1X53-D496 on NFX Series
- 17.2 versions prior to 17.2R3-S1 on NFX Series
- 17.3 versions prior to 17.3R3-S4 on NFX Series
- 17.4 versions prior to 17.4R2-S4, 17.4R3 on NFX Series
- 18.1 versions prior to 18.1R3-S4 on NFX Series
- 18.2 versions prior to 18.2R2-S3, 18.2R3 on NFX Series
- 18.3 versions prior to 18.3R1-S3, 18.3R2 on NFX Series
- 18.4 versions prior to 18.4R1-S1, 18.4R2 on NFX Series
8) Resource management error (CVE-ID: CVE-2019-0050)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an error when "srxpfe" process can crash under certain heavy traffic conditions. A remote attacker can send a specially crafted request and cause a denial of service condition.
Note: This vulnerability affects only Junos OS on SRX1500 platforms.
9) Path traversal (CVE-ID: CVE-2019-0074)
The vulnerability allows a local user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences. A local authenticated user can send a specially crafted HTTP request and read arbitrary files on the system.
Note: This vulnerability affects only Junos OS on NFX150 Series, QFX10K Series, EX9200 Series, MX Series and PTX Series with Next-Generation Routing Engine (NG-RE) and vmhost.
10) Input validation error (CVE-ID: CVE-2019-0075)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the srxpfe process on Protocol Independent Multicast (PIM). A remote attacker can send a specially crafted (PIM) messages, crash the srxpfe process, reboot FPC and cause a denial of service condition.
Note: This vulnerability affects only Junos OS on SRX Series.
11) Improper validation of integrity check value (CVE-ID: CVE-2019-0071)
The vulnerability exists due to an error when the Veriexec subsystem will fail to initialize, in essence disabling file integrity checking. A local authenticated user with shell access can install untrusted executable images, elevate privileges and gain full control of the system.
12) Incorrect default permissions (CVE-ID: CVE-2019-0073)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the PKI keys exported using the command "run request security pki key-pair export" have insecure file permissions. A local user with access to the system can view contents of files and directories or modify them.
13) Resource exhaustion (CVE-ID: CVE-2019-0051)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the SSL-Proxy feature on SRX devices fails to handle a hardware resource limitation. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Note: This vulnerability affects only Junos OS on SRX5000 Series
14) Input validation error (CVE-ID: CVE-2019-0070)
The vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to insufficient validation of user-supplied input. A local authenticated user can elevate his permissions to take control of other portions of the NFX platform and execute arbitrary commands outside their authorized scope of control.
Note: This vulnerability affects only Junos OS on NFX Series.
15) Stored Cross-site scripting (CVE-ID: CVE-2019-0047)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in J-Web interface. A remote attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
16) Session Fixation (CVE-ID: CVE-2019-0062)
The vulnerability allows a remote attacker to steal authenticated sessions.
The vulnerability exists in the J-Web due to the the affected software does not invalidate the previous session and create a new one upon successful login. A remote attacker can use social engineering techniques to fix and hijack a J-Web administrators web session and gain administrative access to the device.17) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-0061)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to insecure management daemon (MGD) configuration. A local authenticated user can gain administrative privileges due to a misconfiguration of the internal socket.
18) Input validation error (CVE-ID: CVE-2019-0060)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the flowd process when processing specific transit IP packets through an IPSec tunnel. A remote attacker can cause an extended Denial of Service (DoS) condition.
Note: This issue only occurs when IPSec tunnels are configured. Systems without IPSec tunnel configurations are not vulnerable to this issue.
19) Improper Privilege Management (CVE-ID: CVE-2019-0058)
The vulnerability allows a local user to escalate privilege on the target system.
The vulnerability exists due to missing access controls in the Veriexec subsystem. A local user can elevate privileges to gain full control of the target system.
20) Memory leak (CVE-ID: CVE-2019-0059)
The vulnerability allows a remote attacker to cause a denial of service (DoS) condition.
The vulnerability exists due to memory leak in the routing protocol process (rpd). A remote attacker can send specific commands from a peered BGP host, have those BGP states delivered to the vulnerable device and perform a denial of service attack.
21) Improper Authorization (CVE-ID: CVE-2019-0057)
The vulnerability allows a local user to bypass authorization checks.
The vulnerability exists due to missing authorization checks. A local user can bypass regular security controls to access the Junos Device Manager (JDM) application and take control of the system.
22) Insufficient Resource Pool (CVE-ID: CVE-2019-0056)
The vulnerability allows a remote attacker to cause a denial of service (DoS) condition.
The vulnerability exists due to the device's resource pool is not large enough to handle peak demand. A remote attacker can cause the device's Open Shortest Path First (OSPF) states to transition to Down and perform a denial of service attack.
Note: This issue only affects devices with three (3) or more MPC10's installed in a single chassis with OSPF enabled and configured on the device.
23) Improper Certificate Validation (CVE-ID: CVE-2019-0054)
The vulnerability allows a remote attacker to perform a man-in-the-middle (MiTM) attack.
The vulnerability exists due to an improper certificate validation weakness in the SRX Series Application Identification (app-id) signature update client. A remote attacker can perform MitM attack during app-id signature updates.
24) Buffer overflow (CVE-ID: CVE-2019-0055)
The vulnerability allows a remote attacker to cause a denial of service (DoS) condition.
The vulnerability exists due to a boundary error in the SIP ALG packet processing service. A remote attacker can send a specific types of valid SIP traffic to the device, cause flowd process to crash, trigger memory corruption and cause a denial of service condition.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.
References
- https://kb.juniper.net/JSA10962
- https://kb.juniper.net/JSA10963
- https://kb.juniper.net/JSA10964
- https://kb.juniper.net/JSA10965
- https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/ng-mvpn-services-enabling.html
- https://kb.juniper.net/JSA10966
- https://kb.juniper.net/JSA10968
- https://kb.juniper.net/JSA10969
- https://kb.juniper.net/JSA10972
- https://kb.juniper.net/JSA10975
- https://kb.juniper.net/JSA10976
- https://kb.juniper.net/JSA10978
- https://www.juniper.net/documentation/en_US/junos/topics/concept/veriexec.html
- https://kb.juniper.net/JSA10974
- https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10973&cat=SIRT_1&actp=LIST
- https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10977&cat=SIRT_1&actp=LIST
- https://kb.juniper.net/JSA10970
- https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10961&cat=SIRT_1&actp=LIST
- https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10960&cat=SIRT_1&actp=LIST
- https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10959&cat=SIRT_1&actp=LIST
- https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10956&cat=SIRT_1&actp=LIST
- https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10957&cat=SIRT_1&actp=LIST
- https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10955&cat=SIRT_1&actp=LIST
- https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10954&cat=SIRT_1&actp=LIST
- https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10952&cat=SIRT_1&actp=LIST
- https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10953&cat=SIRT_1&actp=LIST