Symantec Messaging Gateway Multiple Issues
SUMMARY
Symantec has released an update to address issues that were discovered in the Symantec Messaging Gateway (SMG) product.
AFFECTED PRODUCTS
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Symantec Messaging Gateway (SMG) |
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CVE |
Affected Version(s) |
Remediation |
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CVE-2019-18377 CVE-2019-18378 CVE-2019-18379 |
Prior to 10.7.3 |
Upgrade to 10.7.3 |
ISSUES
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CVE-2019-18377 |
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Severity/CVSSv3: |
Medium / 6.4 AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
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References: Impact: |
Security Focus: BID 111094 / NVD: CVE-2019-18377 Privilege Escalation |
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Description: |
Symantec Messaging Gateway, prior to 10.7.3, may be susceptible to a privilege escalation vulnerability, which is a type of issue whereby an attacker may attempt to compromise the software application to gain elevated access to resources that are normally protected from an application or user. |
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CVE-2019-18378 |
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Severity/CVSSv3: |
Medium / 4.3 AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
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References: Impact: |
Security Focus: BID 111095 / NVD: CVE-2019-18378 XSS |
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Description: |
Symantec Messaging Gateway, prior to 10.7.3, may be susceptible to a cross-site scripting (XSS) exploit, which is 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 potentially bypass access controls such as the same-origin policy. |
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CVE-2019-18379 |
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Severity/CVSSv3: |
Medium / 4.3 AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
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References: Impact: |
Security Focus: BID 111097 / NVD: CVE-2019-18379 SSRF |
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Description: |
Symantec Messaging Gateway, prior to 10.7.3, may be susceptible to a server-side request forgery (SSRF) exploit, which is a type of issue that can let an attacker send crafted requests from the backend server of a vulnerable web application or access services available through the loopback interface. |
MITIGATION
A Symantec Messaging Gateway update, version 10.7.3, has been released which addresses the aforementioned issues. Note that the latest Symantec Messaging Gateway releases and patches are available to customers through normal support channels. At this time, there is no evidence of any attempts at these exploits in the wild.
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-2019-18377: Dave of cyllective AG, cyllective.com || @cyllective
- CVE-2019-18378: Ramos <https://github.com/Ramos-dev>
- CVE-2019-18379: Ramos <https://github.com/Ramos-dev>