cbcvebase.
CVE-2019-0006
published 2019-01-15

CVE-2019-0006: A certain crafted HTTP packet can trigger an uninitialized function pointer deference vulnerability in the Packet Forwarding Engine manager (fxpc) on all EX…

PriorityP263critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
5.26%
91.5th percentile
A certain crafted HTTP packet can trigger an uninitialized function pointer deference vulnerability in the Packet Forwarding Engine manager (fxpc) on all EX, QFX and MX Series devices in a Virtual Chassis configuration. This issue can result in a crash of the fxpc daemon or may potentially lead to remote code execution. This issue only occurs when the crafted packet it destined to the device. Affected releases are Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D47 on EX and QFX Virtual Chassis Platforms; 15.1 versions prior to 15.1R7-S3 all Virtual Chassis Platforms 15.1X53 versions prior to 15.1X53-D50 on EX and QFX Virtual Chassis Platforms.

Affected

33 ranges· showing 25
VendorProductVersion rangeFixed in
juniperex_series
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Detection & IOCsextracted from sources · hover to see the quote

  • Look for crafted HTTP packets destined directly to the device (not transit traffic) on Juniper EX, QFX, or MX Series devices in a Virtual Chassis configuration, which may cause the fxpc (Packet Forwarding Engine manager) daemon to crash or behave anomalously.
  • Monitor for unexpected crashes or restarts of the fxpc daemon on Juniper Virtual Chassis devices as a potential indicator of exploitation attempts.
  • Exploitation requires the crafted packet to be addressed to the device itself; filter and alert on anomalous HTTP traffic destined to the management or data-plane interfaces of Virtual Chassis members.
  • ·Vulnerability only affects devices operating in a Virtual Chassis configuration; standalone devices are not affected.
  • ·Affected Junos OS versions: 14.1X53 prior to 14.1X53-D47 (EX/QFX Virtual Chassis), 15.1 prior to 15.1R7-S3 (all Virtual Chassis), and 15.1X53 prior to 15.1X53-D50 (EX/QFX Virtual Chassis). Devices running fixed versions are not vulnerable.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
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