High severity · published Nov 10, 2020
CVE-2020-26820
SAP NetWeaver AS JAVA, versions - 7.20, 7.30, 7.31, 7.40, 7.50, allows an attacker who is authenticated as an administrator to use the administrator console, to expose…
7.2
CVSS
3.9%
EPSS
No
On KEV
Description
SAP NetWeaver AS JAVA, versions - 7.20, 7.30, 7.31, 7.40, 7.50, allows an attacker who is authenticated as an administrator to use the administrator console, to expose unauthenticated access to the file system and upload a malicious file. The attacker or another user can then use a separate mechanism to execute OS commands through the uploaded file leading to Privilege Escalation and completely compromise the confidentiality, integrity and availability of the server operating system and any application running on it.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.9% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NA
Netweaver Application Server Java · Sap
7.20; 7.30; 7.31; 7.40; 7.50 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-26820
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-26820
Third Party Advisory
http://packetstormsecurity.com/files/162086/SAP-Java-OS-Remote-Code-Execution.html
Mailing List
http://seclists.org/fulldisclosure/2021/Apr/7
Permissions Required
https://launchpad.support.sap.com/#/notes/2979062
Vendor Advisory
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=562725571
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