The Install Norton Security (INS) product can be susceptible to a certificate spoofing vulnerability, which is a type of attack whereby a maliciously procured certificate binds the public key of an attacker to the domain name of the target. This may allow the attacker to spoof the target site or mount a man-in-the- middle attack. Note that this particular issue manifests when downloading the Norton for Mac product.
This issue was validated by the product team engineers. An Install Norton Security (INS) update, version 7.6, has been released which addresses the aforementioned issue. To apply the fix, please uninstall the previous version of Install Norton Security and then download and install the updated version. Note that you can access the updated Install Norton Security at the following URL:
At this time, Symantec is not aware of any exploitations or adverse customer impact from these issues.
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 to 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.
CERT Coordination Center <firstname.lastname@example.org> (CVE-2017-15528)
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