PoC Index

CVE-2017-16997

HIGH 9.3EPSS 2.7%

elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the "./" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution.

CVSS v3.0
7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v2.0
9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
2.70% chance of exploitation in the next 30 days, 85th percentile
Published
2017-12-18
Updated
2024-08-05

Proof-of-concept exploits (1)

References

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