CVE-2019-0071

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Summary

CVECVE-2019-0071
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-10-09 20:15:00 UTC
Updated2020-09-29 00:20:00 UTC
DescriptionVeriexec is a kernel-based file integrity subsystem in Junos OS that ensures only authorized binaries are able to be executed. Due to a flaw in specific versions of Junos OS, affecting specific EX Series platforms, the Veriexec subsystem will fail to initialize, in essence disabling file integrity checking. This may allow a locally authenticated user with shell access to install untrusted executable images, and elevate privileges to gain full control of the system. During the installation of an affected version of Junos OS are installed, the following messages will be logged to the console: Initializing Verified Exec: /sbin/veriexec: Undefined symbol "__aeabi_uidiv" /sbin/veriexec: Undefined symbol "__aeabi_uidiv" /sbin/veriexec: Undefined symbol "__aeabi_uidiv" veriexec: /.mount/packages/db/os-kernel-prd-arm-32-20190221.70c2600_builder_stable_11/boot/brcm-hr3.dtb: Authentication error veriexec: /.mount/packages/db/os-kernel-prd-arm-32-20190221.70c2600_builder_stable_11/boot/contents.izo: Authentication error ... This issue affects Juniper Networks Junos OS: 18.1R3-S4 on EX2300, EX2300-C and EX3400; 18.3R1-S3 on EX2300, EX2300-C and EX3400.

Risk And Classification

Problem Types: CWE-354

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Juniper Ex2300 - All All All
Hardware Juniper Ex2300 - All All All
Hardware Juniper Ex2300-c - All All All
Hardware Juniper Ex2300-c - All All All
Hardware Juniper Ex3400 - All All All
Hardware Juniper Ex3400 - All All All
Operating System Juniper Junos 18.1 r3-s4 All All
Operating System Juniper Junos 18.3 r1-s3 All All
Operating System Juniper Junos 18.1 r3-s4 All All
Operating System Juniper Junos 18.3 r1-s3 All All

References

ReferenceSourceLinkTags
Veriexec Overview - TechLibrary - Juniper Networks MISC www.juniper.net Vendor Advisory
2019-10 Security Bulletin: Junos OS: EX2300, EX3400 Series: Veriexec signature checking not enforced in specific versions of Junos OS (CVE-2019-0071) - Juniper Networks MISC kb.juniper.net Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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