CVE-2017-16544
In the add_match function in libbb/lineedit.c in BusyBox through 1.27.2, the tab autocomplete feature of the shell, used to get a list of filenames in a directory, does not sanitize filenames and results in executing any escape sequence in the terminal.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the add_match function in libbb/lineedit.c in BusyBox through 1.27.2, the tab autocomplete feature of the shell, used to get a list of filenames in a directory, does not sanitize filenames and results in executing any escape sequence in the terminal. This could potentially result in code execution, arbitrary file writes, or other attacks.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 6.24% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- busybox/busybox · debian/debian linux · vmware/esxi · redlion/n-tron 702-w firmware · redlion/n-tron 702m12-w firmware · canonical/ubuntu linux
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/154536/VMware-Security-Advisory-2019-0013.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/167552/Nexans-FTTO-GigaSwitch-Outdated-Components-Hardcoded-Backdoor.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2019/Jun/18Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2019/Sep/7Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Aug/20Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Mar/15Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Sep/6Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Aug/21Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Jan/39Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2022/Jun/36Exploit, Mailing List, Third Party Advisory
- http://www.vmware.com/security/advisories/VMSA-2019-0013.htmlThird Party Advisory
- https://git.busybox.net/busybox/commit/?id=c3797d40a1c57352192c6106cc0f435e7d9c11e8Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00037.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00020.htmlMailing List, Third Party Advisory
- https://seclists.org/bugtraq/2019/Jun/14Exploit, Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2019/Sep/7Exploit, Mailing List, Third Party Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-20-240-01Third Party Advisory, US Government Resource
- https://usn.ubuntu.com/3935-1/Third Party Advisory
- https://www.twistlock.com/2017/11/20/cve-2017-16544-busybox-autocompletion-vulnerability/Third Party Advisory
- http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/154536/VMware-Security-Advisory-2019-0013.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/167552/Nexans-FTTO-GigaSwitch-Outdated-Components-Hardcoded-Backdoor.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2019/Jun/18Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2019/Sep/7Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Aug/20Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Mar/15Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Sep/6Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Aug/21Exploit, Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Jan/39Exploit, Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.