- wlug - list.wlug.org.nz

Privacy-Busting Bugs Found in Popular VPN Services Hotspot Shield, Zenmate and PureVPN
by Peter Reutemann 13 Mar '18

13 Mar '18

'A report by VpnMentor, a website which ranks VPN services, reveals several vulnerabilities in Hotspot Shield, Zenmate, and PureVPN -- all of which promise to provide privacy for their users. VpnMentor says it hired a team of three external ethical hackers to find vulnerabilities in three random popular VPNs. While one hacker wants to keep his identity private, the other two are known as File Descriptor and Paulos Yibelo. ZDNet: The research reveals bugs that can leak real-world IP addresses, which in some cases can identify individual users and determine a user's location. In the case of Hotspot Shield, three separate bugs in how the company's Chrome extension handles proxy auto-config scripts -- used to direct traffic to the right places -- leaked both IP and DNS addresses, which undermines the effectiveness of privacy and anonymity services. [...] AnchorFree, which makes Hotspot Shield, fixed the bugs, and noted that its mobile and desktop apps were not affected by the bugs. The researchers also reported similar IP leaking bugs to Zenmate and PureVPN.' -- source: https://yro.slashdot.org/story/18/03/13/1836218 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Firefox Gets Privacy Boost By Disabling Proximity and Ambient Light Sensor APIs
by Peter Reutemann 12 Mar '18

12 Mar '18

'Stating with Firefox 60 -- expected to be released in May 2018 -- websites won't be able to use Firefox to access data from sensors that provide proximity distances and ambient light information. >From a report: Firefox was allowing websites to access this data via the W3C Proximity and Ambient Light APIs. But at the start of the month, Mozilla engineers decided to disable access to these two APIs by default. The APIs won't be removed, but their status is now controlled by two Firefox flags that will ship disabled by default. This means users will have to manually enable the two flags before any website can use Firefox to extract proximity and ambient light data from the device's underlying sensors. The two flags will be available in Firefox's about:config settings page. The screenshot below shows the latest Firefox Nightly version, where the two flags are now disabled, while other sensor APIs are enabled.' -- source: https://news.slashdot.org/story/18/03/12/1641205 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Microsoft Helps Get A Computer Recycler Sentenced To 15 Months In Prison For Offering Unapproved Recovery Disks
by Lawrence D'Oliveiro 12 Mar '18

12 Mar '18

<https://www.techdirt.com/articles/20180223/17294539295/microsoft-helps-get-…>: Someone dedicates his life to keeping landfills free of harmful material and the government wants to send him to prison. And it's all based on Microsoft's assertion it would have sold as many recovery disks as Lundgren created if only Lundgren hadn't created them. Ignored is the fact they never were distributed. Also ignored is the dubiousness of "lost sales" assertions, which are always 100% conjecture and always presented as a simplistic equation: "1 Piracy = 1 Lost Sale." But in this case, no sales were lost because no sales were replaced with bootleg boot disks. And "sales" must be a legal term of art. Microsoft allows anyone to download a recovery disk for free. But in court, these are suddenly worth money because infringement. To ensure someone gets tossed in jail for breaking the chain of planned obsolescence, Microsoft (and prosecutors) want the court to believe the existence of recovery disks that do nothing unless a person already has a licensed copy of Windows has somehow made the company $700,000 poorer. Given the limitations of burned recovery disks, it's impossible to see where infringement even comes into play. And yet here we are, watching prosecutorial discretion morph into putting someone's head on a platter over recovery disks any one of us could download hundreds of times from Microsoft's website without a single murmur about "lost sales" from the tech giant.

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Command Line Text Processing
by Peter Reutemann 11 Mar '18

11 Mar '18

Useful tutorials: https://github.com/learnbyexample/Command-line-text-processing Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz

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SgxSpectre Attack Can Extract Data From Intel SGX Enclaves
by Peter Reutemann 11 Mar '18

11 Mar '18

'A new variation of the Spectre attack has been revealed this week by six scientists from the Ohio State University. Named SgxSpectre, researchers say this attack can extract information from Intel SGX enclaves. Intel Software Guard eXtensions (SGX) is a feature of modern Intel processors that allow an application to create so-called enclaves. This enclave is a hardware-isolated section of the CPU's processing memory where applications can run operations that deal with extremely sensitive details, such as encryption keys, passwords, user data, and more... Neither Meltdown and Spectre were able to extract data from SGX enclaves. This is where SgxSpectre comes in. According to researchers, SgxSpectre works because of specific code patterns in software libraries that allow developers to implement SGX support into their apps. Vulnerable SGX development kits include the Intel SGX SDK, Rust-SGX, and Graphene-SGX. Academics say an attacker can leverage the repetitive code execution patterns that these SDKs introduce in SGX enclaves and watch for small variations of cache size. This allows for side-channel attacks that allow a threat actor to infer and slowly recover data from secure enclaves. Intel's recent Spectre patches don't necessarily help, as an attacker can work around these fixes. Intel says an update for the Intel SGX SDK that adds SgxSpectre mitigations will be released on March 16. Apps that implement Google's Retpoline anti-Spectre coding techniques are safe, researchers say.' -- source: https://it.slashdot.org/story/18/03/10/0446211 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Debian 9.4 Released
by Peter Reutemann 11 Mar '18

11 Mar '18

'The Debian project is pleased to announce the fourth update of its stable distribution Debian 9 (codename "stretch"). This point release mainly adds corrections for security issues, along with a few adjustments for serious problems... Please note that the point release does not constitute a new version of Debian 9 but only updates some of the packages included. There is no need to throw away old "stretch" media. After installation, packages can be upgraded to the current versions using an up-to-date Debian mirror. Phoronix adds that Debian 9.4 "has a new upstream Linux kernel release, various dependency fixes for some packages, an infinite loop fix in Glade, several CVE security fixes, a larger stack size for NTP, a new upstream release of their NVIDIA proprietary driver package, Python 3 dependency fixes, and other security fixes."' -- source: https://linux.slashdot.org/story/18/03/10/2120216 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Linux Developer McHardy Drops GPLv2 'Shake Down' Case
by Peter Reutemann 11 Mar '18

11 Mar '18

'Former Linux developer Patrick McHardy dropped his Gnu General Public License version 2 (GPLv2) violation case against Geniatech in a German court this week. ZDNet explains why some consider this a big "win": People who find violations typically turn to organizations such as the Free Software Foundation, Software Freedom Conservancy (SFC), and the Software Freedom Law Center to approach violators. These organizations then try to convince violating companies to mend their ways and honor their GPLv2 legal requirements. Only as a last resort do they take companies to court to force them into compliance with the GPLv2. Patrick McHardy, however, after talking with SFC, dropped out from this diplomatic approach and has gone on his own way. Specifically, McHardy has been accused of seeking his own financial gain by approaching numerous companies in German courts. Geniatech claimed McHardy has sued companies for Linux GPLv2 violations in over 38 cases. In one, he'd requested a contractual penalty of €1.8 million. The company also claimed McHardy had already received over €2 million from his actions... In July 2016, the Netfilter developers suspended him from the core team. They received numerous allegations that he had been shaking down companies. McHardy refused to discuss these issues with them, and he refused to sign off on the Principles of Community-Oriented GPL Enforcement. In October 2017, Greg Kroah-Hartman, Linux kernel maintainer for the stable branch, summed up the Linux kernel developers' position. Kroah-Hartman wrote: "McHardy has sought to enforce his copyright claims in secret and for large sums of money by threatening or engaging in litigation...." Had McHardy continued on his way, companies would have been more reluctant to use Linux code in their products for fear that a single, unprincipled developer could sue them and demand payment for his copyrighted contributions... McHardy now has to bear all legal costs for both sides of the case. In other words, when McHardy was faced with serious and costly opposition for the first time, he waved a white flag rather than face near certain defeat in the courts. ' -- source: https://linux.slashdot.org/story/18/03/10/2323242 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Well, It Got Them To The Moon And Back ...
by Lawrence D'Oliveiro 10 Mar '18

10 Mar '18

... and only crashed twice‡. Source code <https://github.com/chrislgarry/Apollo-11/blob/master/Luminary099/LUNAR_LAND…>, and note the comments on lines 179 and 180: # TEMPORARY, I HOPE HOPE HOPE ‡The famous “1202 alarm” and “1201 alarm” incidents during the landing.

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Microsoft Throttles On-Prem Tech Donation Scheme For Nonprofits
by Lawrence D'Oliveiro 09 Mar '18

09 Mar '18

Cloud services will be cheaper, but actually buying premium versions of products will cost more <http://www.theregister.co.uk/2018/03/09/microsoft_charity_donation_shakeup/>. Clearly pushing people towards the rental option. Which means, when the corporate largesse runs out, the charity is left with nothing. Kind of like what has happened at the Enderley Community Centre, with all their Adobe CC products: when the funding ran out, the software stopped being usable.

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Hardcoded Password Found in Cisco Software
by Peter Reutemann 08 Mar '18

08 Mar '18

'Cisco released 22 security advisories yesterday, including two alerts for critical fixes, one of them for a hardcoded password that can give attackers full control over a vulnerable system. From a report: The hardcoded password issue affects Cisco's Prime Collaboration Provisioning (PCP), a software application that can be used for the remote installation and maintenance of other Cisco voice and video products. Cisco PCP is often installed on Linux servers. Cisco says that an attacker could exploit this vulnerability (CVE-2018-0141) by connecting to the affected system via Secure Shell (SSH) using the hardcoded password. The flaw can be exploited only by local attackers, and it also grants access to a low-privileged user account. In spite of this, Cisco has classified the issue as "critical." Although this vulnerability has a Common Vulnerability Scoring System (CVSS) Base score of 5.9, which is normally assigned a Security Impact Rating (SIR) of Medium, there are extenuating circumstances that allow an attacker to elevate privileges to root. For these reasons, the SIR has been set to Critical.' -- source: https://it.slashdot.org/story/18/03/08/145209 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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