Critical severity · published Dec 27, 2019
CVE-2019-20049
An issue was discovered on Alcatel-Lucent OmniVista 4760 devices
9.8
CVSS
12.8%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)12.8% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
O4
Omnivista 4760 · Al-enterprise
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-20049
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-20049
Exploit
https://git.lsd.cat/g/omnivista-rce
Exploit
https://packetstormsecurity.com/files/155595/Alcatel-Lucent-Omnivista-8770-Remote-Code-Execution.html
Vendor Advisory
https://www.al-enterprise.com/en/-/media/assets/internet/documents/sa-c0065-ov8770-rce-vulnerability-en.pdf
Exploit
https://www.exploit-db.com/exploits/47761
More from Omnivista 4760
7.5
CVE-2019-20047
An issue was discovered on Alcatel-Lucent OmniVista 4760 devices, and 8770 devices before 4.1.2