| ID |
CVE-2021-22140
|
| Summary |
Elastic App Search versions after 7.11.0 and before 7.12.0 contain an XML External Entity Injection issue (XXE) in the App Search web crawler beta feature. Using this vector, an attacker whose website is being crawled by App Search could craft a malicious sitemap.xml to traverse the filesystem of the host running the instance and obtain sensitive files. |
| References |
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| Vulnerable Configurations |
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| CVSS |
| Base: | 5.0 (as of 21-05-2021 - 18:09) |
| Impact: | |
| Exploitability: | |
|
| CWE |
CWE-611 |
| CAPEC |
-
XML External Entities Blowup
This attack takes advantage of the entity replacement property of XML where the value of the replacement is a URI. A well-crafted XML document could have the entity refer to a URI that consumes a large amount of resources to create a denial of service condition. This can cause the system to either freeze, crash, or execute arbitrary code depending on the URI.
|
| Access |
| Vector | Complexity | Authentication |
| NETWORK |
LOW |
NONE |
|
| Impact |
| Confidentiality | Integrity | Availability |
| PARTIAL |
NONE |
NONE |
|
| cvss-vector
via4
|
AV:N/AC:L/Au:N/C:P/I:N/A:N
|
| Last major update |
21-05-2021 - 18:09 |
| Published |
13-05-2021 - 18:15 |
| Last modified |
21-05-2021 - 18:09 |
