In September Symantec revealed in a report that it had fired a number of employees for issuing unauthorized TSL certificates for domain names to companies that did not own them.
This meant that they could have been used to copycat HTTPS-protected websites, including those of Google’s. Cyber-criminals could use the certificates to impersonate highly-reputable sites and go undetected.
Initially, Symantec said that 23 certificates were issued, but Google has disputed this number, saying it is much higher. Following further examination, Symantec said that there were a further 164 certificates over 76 domains and 2,458 certificates for domains not yet registered.
In a blog post, Google’s Ryan Sleevi called for the details of Symantec’s investigation to be made public and transparent in order to understand why the number of certificates issued was under estimated. This involves detailed information on how the company will prevent this from happening again as well as what its methods will be.
Sleevi has also called for Symantec to ensure that all SSL certificates, as of June 1 2016, are issued in accordance with Certificate Transparency, a public audit log.
“After this date, certificates newly issued by Symantec that do not conform to the Chromium Certificate Transparency policy may result in interstitials or other problems when used in Google products,” wrote Sleevi.
If Symantec, and possibly any other certificate issuer, doesn’t follow these guidelines, it runs the risk of its SSL certificates being flagged as unsafe or unsecure, which would send a bad message to any user trying to access sites using them through Chrome.
In response, Symantec has said the issue was caused by a testing error. It stated that it has revoked and blacklisted the certificates in question and said that there had been no harm caused to any users or organizations.
“To prevent this type of testing from occurring in the future, we have already put additional tool, policy and process safeguards in place, and announced plans to begin Certificate Transparency logging of all certificates,” said the statement. “We have also engaged an independent third-party to evaluate our approach, in addition to expanding the scope of our annual audit.”
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