CVE-2019-20049
A remote unauthenticated attacker can chain a directory traversal (which helps to bypass authentication) with an insecure file upload to achieve Remote Code Execution as SYSTEM.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 12.8%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
An issue was discovered on Alcatel-Lucent OmniVista 4760 devices. A remote unauthenticated attacker can chain a directory traversal (which helps to bypass authentication) with an insecure file upload to achieve Remote Code Execution as SYSTEM. The directory traversal is in the __construct() whereas the insecure file upload is in SetSkinImages().
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 12.80% probability · 96th percentile
- CISA KEV
- Not listed
- Affected
- al-enterprise/omnivista 4760
- Source
- cve@mitre.org
References
- https://git.lsd.cat/g/omnivista-rceExploit, Third Party Advisory
- https://packetstormsecurity.com/files/155595/Alcatel-Lucent-Omnivista-8770-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://www.al-enterprise.com/en/-/media/assets/internet/documents/sa-c0065-ov8770-rce-vulnerability-en.pdfVendor Advisory
- https://www.exploit-db.com/exploits/47761Exploit, Third Party Advisory, VDB Entry
- https://git.lsd.cat/g/omnivista-rceExploit, Third Party Advisory
- https://packetstormsecurity.com/files/155595/Alcatel-Lucent-Omnivista-8770-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://www.al-enterprise.com/en/-/media/assets/internet/documents/sa-c0065-ov8770-rce-vulnerability-en.pdfVendor Advisory
- https://www.exploit-db.com/exploits/47761Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.