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Inconsistencies in the Common Vulnerability Scoring System (CVSS)

Interesting research:

Shedding Light on CVSS Scoring Inconsistencies: A User-Centric Study on Evaluating Widespread Security Vulnerabilities

Abstract: The Common Vulnerability Scoring System (CVSS) is a popular method for evaluating the severity of vulnerabilities in vulnerability management. In the evaluation process, a numeric score between 0 and 10 is calculated, 10 being the most severe (critical) value. The goal of CVSS is to provide comparable scores across different evaluators. However, previous works indicate that CVSS might not reach this goal: If a vulnerability is evaluated by several analysts, their scores often differ. This raises the following questions: Are CVSS evaluations consistent? Which factors influence CVSS assessments? We systematically investigate these questions in an online survey with 196 CVSS users. We show that specific CVSS metrics are inconsistently evaluated for widespread vulnerability types, including Top 3 vulnerabilities from the ”2022 CWE Top 25 Most Dangerous Software Weaknesses” list. In a follow-up survey with 59 participants, we found that for the same vulnerabilities from the main study, 68% of these users gave different severity ratings. Our study reveals that most evaluators are aware of the problematic aspects of CVSS, but they still see CVSS as a useful tool for vulnerability assessment. Finally, we discuss possible reasons for inconsistent evaluations and provide recommendations on improving the consistency of scoring.

Here’s a summary of the research.

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Posted on September 5, 2023 at 7:03 AM • View Comments

Friday Squid Blogging: We’re Genetically Engineering Squid Now

Is this a good idea?

The transparent squid is a genetically altered version of the hummingbird bobtail squid, a species usually found in the tropical waters from Indonesia to China and Japan. It’s typically smaller than a thumb and shaped like a dumpling. And like other cephalopods, it has a relatively large and sophisticated brain.

The see-through version is made possible by a gene editing technology called CRISPR, which became popular nearly a decade ago.

Albertin and Rosenthal thought they might be able to use CRISPR to create a special squid for research. They focused on the hummingbird bobtail squid because it is small, a prodigious breeder, and thrives in lab aquariums, including one at the lab in Woods Hole.

Is this far behind?

As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.

Read my blog posting guidelines here.

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Posted on September 1, 2023 at 5:29 PM • View Comments

Spyware Vendor Hacked

A Brazilian spyware app vendor was hacked by activists:

In an undated note seen by TechCrunch, the unnamed hackers described how they found and exploited several security vulnerabilities that allowed them to compromise WebDetetive’s servers and access its user databases. By exploiting other flaws in the spyware maker’s web dashboard—used by abusers to access the stolen phone data of their victims—the hackers said they enumerated and downloaded every dashboard record, including every customer’s email address.

The hackers said that dashboard access also allowed them to delete victim devices from the spyware network altogether, effectively severing the connection at the server level to prevent the device from uploading new data. “Which we definitely did. Because we could. Because #fuckstalkerware,” the hackers wrote in the note.

The note was included in a cache containing more than 1.5 gigabytes of data scraped from the spyware’s web dashboard. That data included information about each customer, such as the IP address they logged in from and their purchase history. The data also listed every device that each customer had compromised, which version of the spyware the phone was running, and the types of data that the spyware was collecting from the victim’s phone.

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Posted on September 1, 2023 at 7:07 AM • View Comments

Own Your Own Government Surveillance Van

A used government surveillance van is for sale in Chicago:

So how was this van turned into a mobile spying center? Well, let’s start with how it has more LCD monitors than a Counterstrike LAN party. They can be used to monitor any of six different video inputs including a videoscope camera. A videoscope and a borescope are very similar as they’re both cameras on the ends of optical fibers, so the same tech you’d use to inspect cylinder walls is also useful for surveillance. Kind of cool, right? Multiple Sony DVD-based video recorders store footage captured by cameras, audio recorders by high-end equipment brand Marantz capture sounds, and time and date generators sync gathered media up for accurate analysis. Circling back around to audio, this van features seven different audio inputs including a body wire channel.

Only $26,795, but you can probably negotiate them down.

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Posted on August 31, 2023 at 7:06 AM • View Comments

When Apps Go Rogue

Interesting story of an Apple Macintosh app that went rogue. Basically, it was a good app until one particular update…when it went bad.

With more official macOS features added in 2021 that enabled the “Night Shift” dark mode, the NightOwl app was left forlorn and forgotten on many older Macs. Few of those supposed tens of thousands of users likely noticed when the app they ran in the background of their older Macs was bought by another company, nor when earlier this year that company silently updated the dark mode app so that it hijacked their machines in order to send their IP data through a server network of affected computers, AKA a botnet.

This is not an unusual story. Sometimes the apps are sold. Sometimes they’re orphaned, and then taken over by someone else.

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Posted on August 30, 2023 at 9:39 AM • View Comments

Identity Theft from 1965 Uncovered through Face Recognition

Interesting story:

Napoleon Gonzalez, of Etna, assumed the identity of his brother in 1965, a quarter century after his sibling’s death as an infant, and used the stolen identity to obtain Social Security benefits under both identities, multiple passports and state identification cards, law enforcement officials said.

[…]

A new investigation was launched in 2020 after facial identification software indicated Gonzalez’s face was on two state identification cards.

The facial recognition technology is used by the Maine Bureau of Motor Vehicles to ensure no one obtains multiple credentials or credentials under someone else’s name, said Emily Cook, spokesperson for the secretary of state’s office.

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Posted on August 29, 2023 at 7:03 AM • View Comments

Remotely Stopping Polish Trains

Turns out that it’s easy to broadcast radio commands that force Polish trains to stop:

…the saboteurs appear to have sent simple so-called “radio-stop” commands via radio frequency to the trains they targeted. Because the trains use a radio system that lacks encryption or authentication for those commands, Olejnik says, anyone with as little as $30 of off-the-shelf radio equipment can broadcast the command to a Polish train­—sending a series of three acoustic tones at a 150.100 megahertz frequency­—and trigger their emergency stop function.

“It is three tonal messages sent consecutively. Once the radio equipment receives it, the locomotive goes to a halt,” Olejnik says, pointing to a document outlining trains’ different technical standards in the European Union that describes the “radio-stop” command used in the Polish system. In fact, Olejnik says that the ability to send the command has been described in Polish radio and train forums and on YouTube for years. “Everybody could do this. Even teenagers trolling. The frequencies are known. The tones are known. The equipment is cheap.”

Even so, this is being described as a cyberattack.

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Posted on August 28, 2023 at 7:05 AM • View Comments

Friday Squid Blogging: China’s Squid Fishing Ban Ineffective

China imposed a “pilot program banning fishing in parts of the south-west Atlantic Ocean from July to October, and parts of the eastern Pacific Ocean from September to December.” However, the conservation group Oceana analyzed the data and figured out that the Chinese weren’t fishing in those areas in those months, anyway.

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blockquote>In the south-west Atlantic moratorium area, Oceana found there had been no fishing conducted by Chinese fleets in the same time period in 2019. Between 1,800 and 8,500 fishing hours were detected in the zone in each of the five years to 2019. In the eastern Pacific zone, China’s fishing fleet appeared to fish only 38 hours in the year before the ban’s introduction.

“Ending squid fishing in areas where there is no fishing does nothing to protect squid,” said Oceana’s campaign director, Max Valentine.

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blockquote>

As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.

Read my blog posting guidelines here.

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Posted on August 25, 2023 at 5:06 PM • View Comments

Hacking Food Labeling Laws

This article talks about new Mexican laws about food labeling, and the lengths to which food manufacturers are going to ensure that they are not effective. There are the typical high-pressure lobbying tactics and lawsuits. But there’s also examples of companies hacking the laws:

Companies like Coca-Cola and Kraft Heinz have begun designing their products so that their packages don’t have a true front or back, but rather two nearly identical labels—except for the fact that only one side has the required warning. As a result, supermarket clerks often place the products with the warning facing inward, effectively hiding it.

[…]

Other companies have gotten creative in finding ways to keep their mascots, even without reformulating their foods, as is required by law. Bimbo, the international bread company that owns brands in the United States such as Entenmann’s and Takis, for example, technically removed its mascot from its packaging. It instead printed the mascot on the actual food product—a ready to eat pancake—and made the packaging clear, so the mascot is still visible to consumers.

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Posted on August 25, 2023 at 7:03 AM • View Comments

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Sidebar photo of Bruce Schneier by Joe MacInnis.