Vulnerabilities > CVE-2020-13936
Attack vector
NETWORK Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
References
- http://www.openwall.com/lists/oss-security/2021/03/10/1
- https://lists.apache.org/thread.html/r01043f584cbd47959fabe18fff64de940f81a65024bb8dddbda31d9a%40%3Cuser.velocity.apache.org%3E
- https://lists.apache.org/thread.html/r01043f584cbd47959fabe18fff64de940f81a65024bb8dddbda31d9a%40%3Cuser.velocity.apache.org%3E
- https://lists.apache.org/thread.html/r0bc98e9cd080b4a13b905c571b9bed87e1a0878d44dbf21487c6cca4%40%3Cdev.santuario.apache.org%3E
- https://lists.apache.org/thread.html/r17cb932fab14801b14e5b97a7f05192f4f366ef260c10d4a8dba8ac9%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/r293284c6806c73f51098001ea86a14271c39f72cd76af9e946d9d9ad%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/r39de20c7e9c808b1f96790875d33e58c9c0aabb44fd9227e7b3dc5da%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/r3ea4c4c908505b20a4c268330dfe7188b90c84dcf777728d02068ae6%40%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/r4cd59453b65d4ac290fcb3b71fdf32b4f1f8989025e89558deb5a245%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/r52a5129df402352adc34d052bab9234c8ef63596306506a89fdc7328%40%3Cusers.activemq.apache.org%3E
- https://lists.apache.org/thread.html/r7f209b837217d2a0fe5977fb692e7f15d37fa5de8214bcdc4c21d9a7%40%3Ccommits.turbine.apache.org%3E
- https://lists.apache.org/thread.html/r9dc2505651788ac668299774d9e7af4dc616be2f56fdc684d1170882%40%3Cusers.activemq.apache.org%3E
- https://lists.apache.org/thread.html/rb042f3b0090e419cc9f5a3d32cf0baff283ccd6fcb1caea61915d6b6%40%3Ccommits.velocity.apache.org%3E
- https://lists.apache.org/thread.html/rbee7270556f4172322936b5ecc9fabf0c09f00d4fa56c9de1963c340%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/rd2a89e17e8a9b451ce655f1a34117752ea1d18a22ce580d8baa824fd%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/rd7e865c87f9043c21d9c1fd9d4df866061d9a08cfc322771160d8058%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/re641197d204765130618086238c73dd2ce5a3f94b33785b587d72726%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/re8e7482fe54d289fc0229e61cc64947b63b12c3c312e9f25bf6f3b8c%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/reab5978b54a9f4c078402161e30a89c42807b198814acadbe6c862c7%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/rf7d369de88dc88a1347006a3323b3746d849234db40a8edfd5ebc436%40%3Cdev.ws.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2021/03/msg00019.html
- https://security.gentoo.org/glsa/202107-52
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- http://www.openwall.com/lists/oss-security/2021/03/10/1
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://security.gentoo.org/glsa/202107-52
- https://lists.debian.org/debian-lts-announce/2021/03/msg00019.html
- https://lists.apache.org/thread.html/rf7d369de88dc88a1347006a3323b3746d849234db40a8edfd5ebc436%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/reab5978b54a9f4c078402161e30a89c42807b198814acadbe6c862c7%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/re8e7482fe54d289fc0229e61cc64947b63b12c3c312e9f25bf6f3b8c%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/re641197d204765130618086238c73dd2ce5a3f94b33785b587d72726%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/rd7e865c87f9043c21d9c1fd9d4df866061d9a08cfc322771160d8058%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/rd2a89e17e8a9b451ce655f1a34117752ea1d18a22ce580d8baa824fd%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/rbee7270556f4172322936b5ecc9fabf0c09f00d4fa56c9de1963c340%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/rb042f3b0090e419cc9f5a3d32cf0baff283ccd6fcb1caea61915d6b6%40%3Ccommits.velocity.apache.org%3E
- https://lists.apache.org/thread.html/r9dc2505651788ac668299774d9e7af4dc616be2f56fdc684d1170882%40%3Cusers.activemq.apache.org%3E
- https://lists.apache.org/thread.html/r7f209b837217d2a0fe5977fb692e7f15d37fa5de8214bcdc4c21d9a7%40%3Ccommits.turbine.apache.org%3E
- https://lists.apache.org/thread.html/r52a5129df402352adc34d052bab9234c8ef63596306506a89fdc7328%40%3Cusers.activemq.apache.org%3E
- https://lists.apache.org/thread.html/r4cd59453b65d4ac290fcb3b71fdf32b4f1f8989025e89558deb5a245%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/r3ea4c4c908505b20a4c268330dfe7188b90c84dcf777728d02068ae6%40%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/r39de20c7e9c808b1f96790875d33e58c9c0aabb44fd9227e7b3dc5da%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/r293284c6806c73f51098001ea86a14271c39f72cd76af9e946d9d9ad%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/r17cb932fab14801b14e5b97a7f05192f4f366ef260c10d4a8dba8ac9%40%3Cdev.ws.apache.org%3E
- https://lists.apache.org/thread.html/r0bc98e9cd080b4a13b905c571b9bed87e1a0878d44dbf21487c6cca4%40%3Cdev.santuario.apache.org%3E
- https://lists.apache.org/thread.html/r01043f584cbd47959fabe18fff64de940f81a65024bb8dddbda31d9a%40%3Cuser.velocity.apache.org%3E
- https://lists.apache.org/thread.html/r01043f584cbd47959fabe18fff64de940f81a65024bb8dddbda31d9a%40%3Cuser.velocity.apache.org%3E