CVE-2017-7529 PAN-OS: Nginx integer overflow may lead to information leak
Description
Nginx web-server included with PAN-OS is vulnerable to an integer overflow vulnerability that can leak potentially a cache file header if a response was returned from cache.
This issue affects:
PAN-OS 7.1 versions earlier than 7.1.26;
PAN-OS 8.1 versions earlier than 8.1.13;
PAN-OS 9.0 versions earlier than 9.0.6;
All versions of PAN-OS 8.0.
Product Status
| Versions | Affected | Unaffected |
|---|---|---|
| PAN-OS 9.1 | None | >= 9.1.0 |
| PAN-OS 9.0 | < 9.0.6 | >= 9.0.6 |
| PAN-OS 8.1 | < 8.1.13 | >= 8.1.13 |
| PAN-OS 8.0 | 8.0.* | None |
| PAN-OS 7.1 | < 7.1.26 | >= 7.1.26 |
Severity: MEDIUM
CVSSv3.1 Base Score: 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
Weakness Type
CWE-190 Integer Overflow or Wraparound
Solution
This issue is fixed in PAN-OS 7.1.26, PAN-OS 8.1.13, PAN-OS 9.0.6, PAN-OS 9.1.0, and all later PAN-OS versions.
Workarounds and Mitigations
Attacks against CVE-2017-7529 can be blocked with signatures for Unique Threat ID 33070 enabled on a different firewall configured to protect the vulnerable management interfaces.
This issue affects the management interface of PAN-OS and is strongly mitigated by following best practices for securing the PAN-OS management interface.
Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at: https://docs.paloaltonetworks.com