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Vulnerability Details : CVE-2017-16997

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.
Publish Date : 2017-12-17 Last Update Date : 2019-04-26
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- CVSS Scores & Vulnerability Types

CVSS Score
9.3
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Gain privileges
CWE ID 426

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2018:3092: glibc security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20183092 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2017-16997

# Product Type Vendor Product Version Update Edition Language
1 Application GNU Glibc 2.19 Version Details Vulnerabilities
2 Application GNU Glibc 2.20 Version Details Vulnerabilities
3 Application GNU Glibc 2.21 Version Details Vulnerabilities
4 Application GNU Glibc 2.22 Version Details Vulnerabilities
5 Application GNU Glibc 2.23 Version Details Vulnerabilities
6 Application GNU Glibc 2.25 Version Details Vulnerabilities
7 Application GNU Glibc 2.26 Version Details Vulnerabilities
8 OS Redhat Enterprise Linux Desktop 7.0 Version Details Vulnerabilities
9 OS Redhat Enterprise Linux Server 7.0 Version Details Vulnerabilities
10 OS Redhat Enterprise Linux Workstation 7.0 Version Details Vulnerabilities
11 OS Redhat Virtualization 4.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
GNU Glibc 7
Redhat Enterprise Linux Desktop 1
Redhat Enterprise Linux Server 1
Redhat Enterprise Linux Workstation 1
Redhat Virtualization 1

- References For CVE-2017-16997

https://sourceware.org/bugzilla/show_bug.cgi?id=22625 CONFIRM
https://bugs.debian.org/884615 CONFIRM
https://access.redhat.com/errata/RHSA-2018:3092
REDHAT RHSA-2018:3092
https://sourceware.org/ml/libc-alpha/2017-12/msg00528.html CONFIRM
http://www.securityfocus.com/bid/102228
BID 102228 GNU C Library 'elf/dl-load.c ' CVE-2017-16997 Local Privilege Escalation Vulnerability Release Date:2018-01-02
https://access.redhat.com/errata/RHBA-2019:0327
REDHAT RHBA-2019:0327

- Metasploit Modules Related To CVE-2017-16997

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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