Big Ip Policy Enforcement Manager

On BIG-IP 14.1.0-14.1.0.5, 14.0.0-14.0.0.5, 13.0.0-13.1.1.4, 12.1.0-12.1.4.1, and 11.5.1-11.6.4 and BIG-IQ 6.0.0-6.1.0 and 5.1.0-5.4.0, an undisclosed iControl REST worker vulnerable to command injection for an Administrator user.Show less

In BIG-IP 15.0.0, 14.0.0-14.1.0.5, 13.0.0-13.1.1.5, 12.1.0-12.1.4.2, and 11.5.2-11.6.4, BIG-IQ 6.0.0-6.1.0 and 5.1.0-5.4.0, iWorkflow 2.3.0, and Enterprise Manager 3.1.1, authenticated users with the ability to upload files (via scp, for example) can escalate their privileges to allow root shell access from within the TMOS Shell (tmsh) interface. The tmsh interface allows users to execute a secondary program via tools like sftp or scp.Show less

Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commits 967c05aee439e6e5d7d805e195b3a20ef5c433d6 and 5f3e2bf008c2221478101ee72f5cb4654b9fc363.Show less

Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit f070ef2ac66716357066b683fb0baf55f8191a2e.Show less

Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit 3b4929f65b0d8249f19a50245cd88ed1a2f78cff.Show less

On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, the Traffic Management Microkernel (TMM) may restart when a virtual server has an HTTP/2 profile with Application Layer Protocol Negotiation (ALPN) enabled and it processes traffic where the ALPN extension size is zero.Show less

On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and 11.5.2-11.5.8, users with the Resource Administrator role can modify sensitive portions of the filesystem if provided Advanced Shell Access, such as editing /etc/passwd. This allows modifications to user objects and is contrary to our definition for the Resource Administrator (RA) role restrictions.Show less

On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and 11.5.2-11.5.8, a user with the Resource Administrator role is able to overwrite sensitive low-level files (such as /etc/passwd) using SFTP to modify user permissions, without Advanced Shell access. This is contrary to our definition for the Resource Administrator (RA) role restrictions.Show less

On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and 11.5.2-11.5.8, administrative users with TMSH access can overwrite critical system files on BIG-IP which can result in bypass of whitelist / blacklist restrictions enforced by appliance mode.Show less

On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and 11.5.2-11.5.8, Administrator and Resource Administrator roles might exploit TMSH access to bypass Appliance Mode restrictions on BIG-IP systems.Show less

On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, internal methods used to prevent arbitrary file overwrites in Appliance Mode were not fully effective. An authenticated attacker with a high privilege level may be able to bypass protections implemented in appliance mode to overwrite arbitrary system files.Show less

On BIG-IP 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and 11.5.2-11.5.8, SNMP may expose sensitive configuration objects over insecure transmission channels. This issue is exposed when a passphrase is used with various profile types and is accessed using SNMPv2.Show less

When BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and 11.5.2-11.5.8 are processing certain rare data sequences occurring in PPTP VPN traffic, the BIG-IP system may execute incorrect logic. The TMM may restart and produce a core file as a result of this condition. The BIG-IP system provisioned with the CGNAT module and configured with a virtual server using a PPTP profile is exposed to this vulnerability.Show less

Platform dependent weakness. This issue only impacts iSeries platforms. On these platforms, in BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, FPS, GTM, Link Controller, PEM, WebAccelerator) versions 14.0.0-14.1.0.1, 13.0.0-13.1.1.3, and 12.1.1 HF2-12.1.4, the secureKeyCapable attribute was not set which causes secure vault to not use the F5 hardware support to store the unit key. Instead the unit key is stored in plaintext on disk as would be the case for Z100 systems. Additionally this causes the unit key to be stored in UCS files taken on these platforms.Show less

On BIG-IP 11.5.1-11.5.8, 11.6.1-11.6.3, 12.1.0-12.1.3.6, 13.0.0-13.1.1.1, and 14.0.0-14.0.0.2, under certain conditions, hardware systems with a High-Speed Bridge and using non-default Layer 2 forwarding configurations may experience a lockup of the High-Speed Bridge.Show less