DLP Cross Site Scripting
SUMMARY
Symantec has released updates to address an issue that was discovered in the DLP product.
AFFECTED PRODUCTS
|
Product family |
Affected Version(s) |
Remediation |
|
Data Loss Prevention |
14.x |
Upgrade to 15.5 and follow remediation actions mentioned below. Customers who are unable to upgrade immediately should follow the risk reduction measures described below. |
|
|
15.0 |
Refer to the tech note link in the “Mitigation” section below. |
|
|
15.1 |
Upgrade to 15.1 MP2 |
|
|
15.5 |
Refer to the tech note link in the “Mitigation” section below. |
ISSUES
|
CVE-2019-9701 |
|
|
Severity/CVSSv3: |
Medium / 4.3 AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
|
References: Impact: |
Security Focus: BID 108733 / NVD: CVE-2019-9701 Cross-site Scripting (XSS) |
|
Description: |
DLP 15.5 MP1 and all prior versions may be susceptible to a cross-site scripting (XSS) vulnerability, a type of issue that can enable attackers to inject client-side scripts into web pages viewed by other users. A cross-site scripting vulnerability may be used by attackers to bypass access controls such as the same-origin policy. |
MITIGATION
A DLP update for affected 15.x versions has been made available. Note that the latest product releases are available to customers through normal support channels. For additional details regarding mitigations as per the above table, please reference the following tech note for further information:
https://knowledge.broadcom.com/external/article/190379/
At this time, Symantec is not aware of any exploitations or adverse customer impact from this issue.
Symantec recommends the following measures to reduce risk of attack:
- Restrict access to administrative or management systems to authorized privileged users.
- Restrict remote access to trusted/authorized systems only.
- Run under the principle of least privilege, where possible, to limit the impact of potential exploit.
- Keep all operating systems and applications current with vendor patches.
- Follow a multi-layered approach to security. At a minimum, run both firewall and anti-malware applications to provide multiple points of detection and protection for both inbound and outbound threats.
- Deploy network and host-based intrusion detection systems to monitor network traffic for signs of anomalous or suspicious activity. This may aid in the detection of attacks or malicious activity related to the exploitation of latent vulnerabilities.
ACKNOWLEDGEMENTS
- CVE-2019-9701: Chapman Schleiss @_r3naissance
REFERENCES
https://knowledge.broadcom.com/external/article/190379/