A new Internet security analysis finds that computer vulnerabilities decreased last year for perhaps the first time, though the researchers behind the report caution that there has been no improvement in Web safety.
The annual “X-Force” report, released by Internet Security Systems, part of IBM Corp., says network and software vendors acknowledged 6,437 security flaws in 2007, down 5.4 percent from the prior year.
Chris Rouland, ISS’s chief technology officer, said that in at least 10 years of counting he had not seen that figure drop.
Even with the decline, the number of vulnerabilities remains well beyond the 4,824 Rouland’s group tallied just two years earlier.
Rouland contends the 2007 number would have been higher if not for the emergence of a black market that will pay up to $100,000 (euro68,766) to computer whizzes who find such threats and sell the information to criminal gangs eager to exploit them.
Security companies have expressed unease about the marketplace for discovered security vulnerabilities that has sprung up in recent years, even if criminals are not the customers.
Some researchers fear software vendors are now buying information on the vulnerabilities so they can fix them without anyone noticing.
In other words, Rouland fears, “it is profitable not to (publicly) report a vulnerability.”
Rouland acknowledged there’s no way to tell how many security holes are going undocumented.
Another security researcher, Richard Jacobs of Sophos PLC, questioned how much difference undisclosed vulnerabilities make for companies, government agencies and everyday computer users. Jacobs, Sophos’ chief technology officer, said corporate technology staffs often take months or years to patch even widely publicized holes.
In any case, Toby Weiss, CEO of Application Security Inc., a database security vendor, said the drop in total vulnerabilities was less important than ISS’s finding that critical security holes _ those that let an outside attacker do the most damage on a computer network _ jumped 28 percent in 2007.
Counting the total number of vulnerabilities, Weiss said, “is old-school thinking.”
“Do you think Societe Generale cares that there’s 6,000 vulnerabilities, or the few weak controls they had that cost them billions of dollars?” Weiss said, referring to the French bank that recently said a rogue employee’s unauthorized trades cost it more than $7 billion (euro4.81 billion). “That’s what really matters.”
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