Software Vulnerability Index making progress
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InfoWorld - Security experts working on the CWE (Common Weakness Enumeration) project claim that the initiative to create a central resource of software vulnerabilities for developers is gaining momentum.
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Vendors ship updated packages to fix the problem that could allow an attacker to take control of a system.
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On Aug. 14, IT security training and research authority SANS Institute will convene its inaugural set of exams for software developers seeking to attain its new secure coding certifications. The rise of such initiatives -- and increasing adoption of source code vulnerability scanning tools among internal software development teams -- are finally making a difference in overall applications security, some end users and industry experts contend.
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This third and final article in the Metasploit series covers the msfcli scripting interface as well as the intuitive web interface to the Framework. The article also discusses what's new with version 2.2, and then introduces the exploit development process through an example.
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During a weeklong period in mid-November, security experts with Symantec observed roughly 65,000 new applications being downloaded onto the computers of customers participating in a new research project -- based on their analysis of the software, as many as 60 percent of the programs were malicious.The involved timeframe represented a relative high point for the percentage of unknown applications being downloaded by Symantec's project participants, and the basis for the company's assessment of the programs as malicious was predicated largely on the programs' use of obfuscated naming conventions.However, the numbers point to a disturbing trend that the researchers say may force the security company to change its fundamental approach for warding off threats -- that being that the number of malicious applications coming to life on the Web appears to be outpacing the volume of legitimate programs.With malware authors using fuzzing tools to find holes in popular applications such as Web browsers, and testing their work against commercial anti-virus (AV) products to ensure that the attacks evade detection by the tools, leading researchers at Symantec admit that defending against threats using traditional methods has become something of a losing battle."The reality is that most new malware is going undetected by commercial security products, and not just Symantec's, but we have to recognize that like all other AV products we are probably missing a sizeable amount of this malware," said Carey Nachenberg, a member of the company's Security Response team who also wears the title of Symantec Fellow."Eventually we write [virus] signatures and get those out to customers, but it appears that a sizeable proportion of this malware never gets detected," he said. "Instead of distributing one copy of each malware program to thousands of people, they're producing a copy for as few as two or three people and then re-writing it; so, if we get one version we can remove it from a few computers, but not all the variants. The problem with this is that there is the potential over time for almost everyone to have some form of infestation, maybe in only a few years time."The trend toward malware authors using small runs of attacks to evade detection and hook as many victims as possible, known as server-side polymorphism, is forcing Symantec to reassess how it goes about protecting its users.Since it can't hope to keep up with every flavor of threat that is being created, traditional countermeasures such as the use of malware signatures or behavioral heuristics will need to be augmented with new tactics, Nachenberg said.One such alternative is the use of the same distributed data collection capabilities that Symantec is using to track the proliferation of malware. By creating a system of file and Web site reputation by studying applications usage patterns among its customers, the researcher said, Symantec hopes to use a community approach to help people determine which programs they decide to use, or avoid.Much as many people turn to the reviews section on Amazon.com or the buyer feedback system on eBay to get a real-world take on products before they decide to buy, Nachenberg contends that by watching how people are using various applications the security vendor can use a process of elimination for weeding out malware from legitimate software.If only a few people among the millions of Symantec customers who could contribute usage data to such a program were utilizing some application in question, it would be prudent to recommend that people avoid the program until its nature has been better determined, he said.Using opt-out tools that provide anonymous feedback on applications that were built into Symantec's existing Norton AntiVirus and Internet Security 2008 products, the company is already gathering the type of data necessary to create such a system of recommendation."Right now this is just a long-term research project, but we hope that as we get more users involved in the system, we can truly get a better idea of what is on people's computers so that we can identify malicious software based on the demographics of who is using it, versus what it does," Nachenberg said. "We're hoping to get more clarity through the large base of users we have; by collecting this data we should be able to get the most comprehensive view of the usage patterns to derive reputation information for everything they use."Faced with questions over potential privacy issues driven by Symantec's ability to watch just who is using what applications and how, the researcher reiterated that users must be made aware of the data collection, allowed to opt-out, and guaranteed that all the information aggregation is done in an anonymous fashion.By offering users the ability to decide whether or not to use an application based on demographics, versus simply blocking programs based on its own observations, the company will also give people more freedom to determine what tools they feel are appropriate to use, he said."If we know that only five people are using a program, given the tens of millions of users we ultimately hope to have in the system, we can be totally objective and recommend that people wait until it is scrutinized further before using it," the researcher said. "We will need to have some manual process for white-listing programs as well, but we think that using this approach we can deliver a reasonable amount of quality with a low false positive rate."If the volume of new malware strains arriving on the Web continues to outpace the proliferation of legitimate programs, Nachenberg said that AV vendors including Symantec may need to move to a white-listing approach in general, and focus more attention on identifying good applications instead of trying to chase down all the bad."If there is less software to analyze that is good, it makes more sense to spend our time scanning for good programs and simply telling our users to avoid everything else," he said. "We're considering models where we can produce the world's largest up-to-date white list of software, but it's not something we can put together in a year; maybe in two-to-three years time."
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Unpatched vulnerabilities may leave computers open to remote attacks.
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Secunia has found that the number of security bugs in the open source Red Hat Linux operating system and Firefox browsers far outstripped comparable products from Microsoft last year.In a report released this week, Secunia also criticized CA for the quality of the code in its anti-virus products, saying that "inherent" code problems are exposing CA products to ongoing security vulnerabilities.On the other hand, "zero-day" security bugs in Firefox were patched more quickly than in Microsoft Internet Explorer, according to the Secunia 2007 Report, released this week.In a review of the number of vulnerabilities found in enterprise anti-virus vendors' products, Secunia found that CA was by far the leader, with 187 vulnerabilities, followed by Symantec with 73. Trend Micro (34), ClamAV (15), McAfee (13) and F-Secure (6) ranked lower on the list.The high figures for Symantec and CA are partly due to their wide range of products, some of which cover areas other than anti-virus, Secunia said.However, the majority of the CA bugs were due to "inherent code problems with some CA products", Secunia said in the report.Of particular concern is CA's range of ARCServe Backup products for laptops and desktops, which Secunia submitted to its Binary Analysis process after several bugs were reported and fixed. The bugs involved errors in processing particular arguments and requests.The analysis found that about 60 reported bugs were still present in the supposedly patched versions.What's more, the analysis found that the vulnerabilities were partly due to "the nature of the product code itself", Secunia said."Unless an overhaul of the code is undertaken, then the product remains susceptible to similar types of vulnerabilities," Secunia said.However CA said in a statement that it has rigorous quality-control measures in place for its software and continues to improve those measures.A number of the vulnerabilities found in Symantec products were due to their use of vulnerable software from third-party developers, Secunia said.One of these is the Autonomy Keyview SDK (software development kit), used in Symantec Mail to view Lotus 1-2-3 files. The component was reported to have a "highly critical" flaw on 12 December, but hasn't yet been patched, leaving some Symantec products vulnerable.Symantec said in a statement that it has published instructions for mitigating the problem and has issued product updates for some affected vendors. IBM, whose Lotus Notes was also affected by the Autonomy bug, has issued its own patch.Operating systems and browsersOut of the operating systems monitored by Secunia -- Windows (98 and onwards), Mac OS X, HP-UX 10.x and 11.x, Solaris 8, 9, and 10 and Red Hat (excluding Fedora) -- Red Hat was found to have by far the most vulnerabilities, at 633, with 99 percent found in third-party components. (Linux distributions are generally composed mostly of third-party software, which is integrated by the distributor.)Red Hat has taken issue with the figures, claiming the accurate number should be 404 vulnerabilities for last year.Solaris came next, with 252 bugs, 80 percent of which were in third-party components. Mac OS X came after that with 235, 62 percent of which were third-party.Windows had only 123 bugs reported, but 96 percent of those were found in the operating system itself. HP-UX had 75 bugs reported, 81 percent of which were in third-party code.Last week, a US Department of Homeland Security (DHS) bug-fixing scheme uncovered an average of one security glitch per 1,000 lines of code in 180 widely used open source software projects.The large number of Red Hat flaws is partly due to the large number and wide variety of components it includes."Red Hat contains two different browsers and graphic interfaces, a number of PDF readers and image editors, and so on," the report said. "Red Hat, HP-UX, and Solaris can easily be used as servers, and as such include and support a large number of third party components, while the same cannot be said of all versions of Windows and Mac OS X."Any consideration of relative OS security should look at factors not covered by the report, such as average patching time for vulnerabilities, Secunia said.In the browser field, Firefox led the way with 64 bugs, compared to 43 for Internet Explorer, and 14 each for Opera and Safari.However, in an examination of zero-day flaws - reported by third parties before a patch was available - Secunia found that Firefox tended to get more patches, sooner, compared to IE.Out of eight zero-day bugs reported for Firefox in 2007, five have been patched, three of those in just over a week. Out of 10 zero-day IE bugs, only three were patched and the shortest patch time was 85 days.ActiveX was hit by the largest number of browser add-on bugs in 2007, with 339 (compared to 45 last year), Secunia said.The figure was propped up by the Month of ActiveX Controls Bugs in May 2007, and by Secunia's discovery of a vulnerable ActiveX component that was used in 40 different products.QuickTime followed with 35 bugs and Java with 21 bugs.
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Does this mean 40 lean days ahead? Microsoft pushed patches for 12 vulnerabilities out of the door yesterday, six of them classed as critical and six of them important.â¦
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The security software company continues to piece together its turnaround.
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10.3.7 fixes bugs, fills security holes
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Acknowledging that its patching process has "not been an example of our best work," Microsoft this week issued a second update to security bulletin MS06-042, which was released in August. The original patch included a security vulnerability - and it turns out the fix introduced even more.
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Linux vendors release patches to resolve operating-system vulnerabilities ranging from DoS attacks to buffer overflows.
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Software update patches bug in wireless drivers that left systems vulnerable.
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php|architect has a new note about a few PHP vulnerabilities:
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Security researchers have discovered another vulnerability in Windows XP Service Pack 2, but it doesn&#39;t appear to be an immediate threat.
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The SANS Institute today released its annual Top-20 list of Internet security vulnerabilities. The list is compiled from recommendations by leading security researchers and companies around the world.
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Updated antivirus software for businesses adds intrusion prevention features.