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3 iOS 0-days, a mobile community compromise, and HTTP used to contaminate an iPhone

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September 23, 2023
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3 iOS 0-days, a cellular network compromise, and HTTP used to infect an iPhone

Getty Photographs

Apple has patched a potent chain of iOS zero-days that have been used to contaminate the iPhone of an Egyptian presidential candidate with subtle adware developed by a business exploit vendor, Google and researchers from Citizen Lab mentioned Friday.

The beforehand unknown vulnerabilities, which Apple patched on Thursday, have been exploited in clickless assaults, that means they didn’t require a goal to take any steps apart from to go to a web site that used the HTTP protocol quite than the safer HTTPS different. A packet inspection system sitting on a mobile community in Egypt stored a watch out for connections from the telephone of the focused candidate and, when noticed, redirected it to a website that delivered the exploit chain, in line with Citizen Lab, a analysis group on the College of Toronto’s Munk Faculty.

A solid of villains, 3 0-days, and a compromised cell community

Citizen Lab mentioned the assault was made attainable by participation from the Egyptian authorities, adware referred to as Predator bought by an organization referred to as Cytrox, and {hardware} bought by Egypt-based Sandvine. The marketing campaign focused Ahmed Eltantawy, a former member of the Egyptian Parliament who introduced he was working for president in March. Citizen Lab mentioned the current assaults have been not less than the third time Eltantawy’s iPhone has been attacked. Considered one of them, in 2021, was profitable and likewise put in Predator.

“Using mercenary adware to focus on a senior member of a rustic’s democratic opposition after they’d introduced their intention to run for president is a transparent interference in free and honest elections and violates the rights to freedom of expression, meeting, and privateness,” Citizen Lab researchers Invoice Marczak, John Scott-Railton, Daniel Roethlisberger, Bahr Abdul Razzak, Siena Anstis, and Ron Deibert wrote in a 4,200-word report. “It additionally straight contradicts how mercenary adware corporations publicly justify their gross sales.”

The vulnerabilities, that are patched in iOS variations 16.7 and iOS 17.0.1, are tracked as:

  • CVE-2023-41993: Preliminary distant code execution in Safari
  • CVE-2023-41991: PAC bypass
  • CVE-2023-41992: Native privilege escalation within the XNU Kernel
Commercial

In line with analysis printed Friday by members of Google’s Menace Evaluation Group, the attackers who exploited the iOS vulnerabilities additionally had a separate exploit for putting in the identical Predator adware on Android units. Google patched the issues on September 5 after receiving a report by a analysis group calling itself DarkNavy.

“TAG noticed these exploits delivered in two alternative ways: the MITM injection and by way of one-time hyperlinks despatched on to the goal,” Maddie Stone, a researcher with the Google Menace Evaluation Group wrote. “We have been solely capable of receive the preliminary renderer distant code execution vulnerability for Chrome, which was exploiting CVE-2023-4762.”

The assault was complicated. Apart from leveraging three separate iOS vulnerabilities, it additionally relied on {hardware} made by a producer referred to as Sandvine. Offered beneath the model umbrella PacketLogic, the {hardware} sat on the mobile community the focused iPhone accessed and monitored visitors passing over it for his telephone. Regardless of the precision, Citizen Lab mentioned that the assault is blocked when customers activate a function referred to as Lockdown, which Apple added to iOS final 12 months. Extra about that later.

There’s little details about the iOS exploit chain apart from it routinely triggered when a goal visited a website internet hosting the malicious code. As soon as there, the exploits put in Predator with no additional person motion required.

To surreptitiously direct the iPhone to the assault website, it solely wanted to go to any HTTP website. Over the previous 5 years or so, HTTPS has turn out to be the dominant technique of connecting to web sites as a result of the encryption it makes use of prevents adversary-in-the-middle attackers from monitoring or manipulating information despatched between the location and the customer. HTTP websites nonetheless exist, and typically HTTPS connections may be downgraded to unencrypted HTTP ones.

As soon as Eltantawy visited an HTTP website, the PacketLogic system injected information into the visitors that surreptitiously related the Apple system to a website that triggered the exploit chain.

Network diagram showing the Spyware Injection Middlebox located on a link between Telecom Egypt and Vodafone Egypt.
Enlarge / Community diagram exhibiting the Spyware and adware Injection Middlebox positioned on a hyperlink between Telecom Egypt and Vodafone Egypt.

Predator, the payload put in within the assault, is bought to a big selection of governments, together with these of Armenia, Egypt, Greece, Indonesia, Madagascar, Oman, Saudi Arabia, and Serbia. Citizen Lab has mentioned that Predator was used to focus on Ayman Nour, a member of the Egyptian political opposition dwelling in exile in Turkey, and an Egyptian exiled journalist who hosts a well-liked information program and desires to stay nameless. Final 12 months researchers from Cisco’s Talo safety group uncovered the inside workings of the malware after acquiring a binary of it.

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3 iOS 0-days, a cellular network compromise, and HTTP used to infect an iPhone

Getty Photographs

Apple has patched a potent chain of iOS zero-days that have been used to contaminate the iPhone of an Egyptian presidential candidate with subtle adware developed by a business exploit vendor, Google and researchers from Citizen Lab mentioned Friday.

The beforehand unknown vulnerabilities, which Apple patched on Thursday, have been exploited in clickless assaults, that means they didn’t require a goal to take any steps apart from to go to a web site that used the HTTP protocol quite than the safer HTTPS different. A packet inspection system sitting on a mobile community in Egypt stored a watch out for connections from the telephone of the focused candidate and, when noticed, redirected it to a website that delivered the exploit chain, in line with Citizen Lab, a analysis group on the College of Toronto’s Munk Faculty.

A solid of villains, 3 0-days, and a compromised cell community

Citizen Lab mentioned the assault was made attainable by participation from the Egyptian authorities, adware referred to as Predator bought by an organization referred to as Cytrox, and {hardware} bought by Egypt-based Sandvine. The marketing campaign focused Ahmed Eltantawy, a former member of the Egyptian Parliament who introduced he was working for president in March. Citizen Lab mentioned the current assaults have been not less than the third time Eltantawy’s iPhone has been attacked. Considered one of them, in 2021, was profitable and likewise put in Predator.

“Using mercenary adware to focus on a senior member of a rustic’s democratic opposition after they’d introduced their intention to run for president is a transparent interference in free and honest elections and violates the rights to freedom of expression, meeting, and privateness,” Citizen Lab researchers Invoice Marczak, John Scott-Railton, Daniel Roethlisberger, Bahr Abdul Razzak, Siena Anstis, and Ron Deibert wrote in a 4,200-word report. “It additionally straight contradicts how mercenary adware corporations publicly justify their gross sales.”

The vulnerabilities, that are patched in iOS variations 16.7 and iOS 17.0.1, are tracked as:

  • CVE-2023-41993: Preliminary distant code execution in Safari
  • CVE-2023-41991: PAC bypass
  • CVE-2023-41992: Native privilege escalation within the XNU Kernel
Commercial

In line with analysis printed Friday by members of Google’s Menace Evaluation Group, the attackers who exploited the iOS vulnerabilities additionally had a separate exploit for putting in the identical Predator adware on Android units. Google patched the issues on September 5 after receiving a report by a analysis group calling itself DarkNavy.

“TAG noticed these exploits delivered in two alternative ways: the MITM injection and by way of one-time hyperlinks despatched on to the goal,” Maddie Stone, a researcher with the Google Menace Evaluation Group wrote. “We have been solely capable of receive the preliminary renderer distant code execution vulnerability for Chrome, which was exploiting CVE-2023-4762.”

The assault was complicated. Apart from leveraging three separate iOS vulnerabilities, it additionally relied on {hardware} made by a producer referred to as Sandvine. Offered beneath the model umbrella PacketLogic, the {hardware} sat on the mobile community the focused iPhone accessed and monitored visitors passing over it for his telephone. Regardless of the precision, Citizen Lab mentioned that the assault is blocked when customers activate a function referred to as Lockdown, which Apple added to iOS final 12 months. Extra about that later.

There’s little details about the iOS exploit chain apart from it routinely triggered when a goal visited a website internet hosting the malicious code. As soon as there, the exploits put in Predator with no additional person motion required.

To surreptitiously direct the iPhone to the assault website, it solely wanted to go to any HTTP website. Over the previous 5 years or so, HTTPS has turn out to be the dominant technique of connecting to web sites as a result of the encryption it makes use of prevents adversary-in-the-middle attackers from monitoring or manipulating information despatched between the location and the customer. HTTP websites nonetheless exist, and typically HTTPS connections may be downgraded to unencrypted HTTP ones.

As soon as Eltantawy visited an HTTP website, the PacketLogic system injected information into the visitors that surreptitiously related the Apple system to a website that triggered the exploit chain.

Network diagram showing the Spyware Injection Middlebox located on a link between Telecom Egypt and Vodafone Egypt.
Enlarge / Community diagram exhibiting the Spyware and adware Injection Middlebox positioned on a hyperlink between Telecom Egypt and Vodafone Egypt.

Predator, the payload put in within the assault, is bought to a big selection of governments, together with these of Armenia, Egypt, Greece, Indonesia, Madagascar, Oman, Saudi Arabia, and Serbia. Citizen Lab has mentioned that Predator was used to focus on Ayman Nour, a member of the Egyptian political opposition dwelling in exile in Turkey, and an Egyptian exiled journalist who hosts a well-liked information program and desires to stay nameless. Final 12 months researchers from Cisco’s Talo safety group uncovered the inside workings of the malware after acquiring a binary of it.

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