CVE-2020-13936 Information

Description

An attacker that is able to modify Velocity templates may execute arbitrary Java code or run arbitrary system commands with the same privileges as the account running the Servlet container. This applies to applications that allow untrusted users to upload/modify velocity templates running Apache Velocity Engine versions up to 2.2.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://lists.apache.org/thread.html/r01043f584cbd47959fabe18fff64de940f81a65024bb8dddbda31d9a%40%3Cuser.velocity.apache.org%3E https://lists.apache.org/thread.html/r01043f584cbd47959fabe18fff64de940f81a65024bb8dddbda31d9a@%3Cuser.velocity.apache.org%3E https://lists.apache.org/thread.html/rb042f3b0090e419cc9f5a3d32cf0baff283ccd6fcb1caea61915d6b6@%3Ccommits.velocity.apache.org%3E https://lists.apache.org/thread.html/r3ea4c4c908505b20a4c268330dfe7188b90c84dcf777728d02068ae6@%3Cannounce.apache.org%3E http://www.openwall.com/lists/oss-security/2021/03/10/1 https://lists.apache.org/thread.html/rd2a89e17e8a9b451ce655f1a34117752ea1d18a22ce580d8baa824fd@%3Ccommits.druid.apache.org%3E https://lists.debian.org/debian-lts-announce/2021/03/msg00019.html https://lists.apache.org/thread.html/re641197d204765130618086238c73dd2ce5a3f94b33785b587d72726@%3Cdev.ws.apache.org%3E https://lists.apache.org/thread.html/rbee7270556f4172322936b5ecc9fabf0c09f00d4fa56c9de1963c340@%3Cdev.ws.apache.org%3E https://lists.apache.org/thread.html/reab5978b54a9f4c078402161e30a89c42807b198814acadbe6c862c7@%3Cdev.ws.apache.org%3E https://lists.apache.org/thread.html/rd7e865c87f9043c21d9c1fd9d4df866061d9a08cfc322771160d8058@%3Cdev.ws.apache.org%3E https://lists.apache.org/thread.html/re8e7482fe54d289fc0229e61cc64947b63b12c3c312e9f25bf6f3b8c@%3Cdev.ws.apache.org%3E https://lists.apache.org/thread.html/r0bc98e9cd080b4a13b905c571b9bed87e1a0878d44dbf21487c6cca4@%3Cdev.santuario.apache.org%3E https://lists.apache.org/thread.html/r39de20c7e9c808b1f96790875d33e58c9c0aabb44fd9227e7b3dc5da@%3Cdev.ws.apache.org%3E https://lists.apache.org/thread.html/r4cd59453b65d4ac290fcb3b71fdf32b4f1f8989025e89558deb5a245@%3Cdev.ws.apache.org%3E https://lists.apache.org/thread.html/r17cb932fab14801b14e5b97a7f05192f4f366ef260c10d4a8dba8ac9@%3Cdev.ws.apache.org%3E https://lists.apache.org/thread.html/r7f209b837217d2a0fe5977fb692e7f15d37fa5de8214bcdc4c21d9a7@%3Ccommits.turbine.apache.org%3E https://lists.apache.org/thread.html/r293284c6806c73f51098001ea86a14271c39f72cd76af9e946d9d9ad@%3Cdev.ws.apache.org%3E https://lists.apache.org/thread.html/rf7d369de88dc88a1347006a3323b3746d849234db40a8edfd5ebc436@%3Cdev.ws.apache.org%3E https://security.gentoo.org/glsa/202107-52 https://lists.apache.org/thread.html/r9dc2505651788ac668299774d9e7af4dc616be2f56fdc684d1170882@%3Cusers.activemq.apache.org%3E https://lists.apache.org/thread.html/r52a5129df402352adc34d052bab9234c8ef63596306506a89fdc7328@%3Cusers.activemq.apache.org%3E https://www.oracle.com/security-alerts/cpujan2022.html https://www.oracle.com/security-alerts/cpuapr2022.html

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8