In Apache Tika 0.9 to 1.18, in a rare edge case where a user does not specify an extract directory on the commandline (--extract-dir=) and the input file has an embedded file with an absolute path, such as "C:/evil.bat", tika-app would overwrite that file.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2018-11762 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 7.5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | High |
| Platform | Package | State |
|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-eclipse46-tika | Not affected |
| Red Hat Satellite 5 | tika | Not affected |
| Red Hat JBoss Fuse Service Works 6 | tika-core | Under investigation |
| Red Hat JBoss Fuse 7 | camel-tika | Under investigation |
| Red Hat JBoss Data Virtualization 6 | tika-core | Under investigation |
| Red Hat JBoss BRMS 6 | tika-core | Under investigation |
| Red Hat JBoss BRMS 5 | tika-core | Not affected |
| Red Hat JBoss BPMS 6 | tika-core | Under investigation |
Vulmon