The ZipperDown Vulnerability could affect roughly 10% of iOS Apps [source: securityaffairs]
by CIRT Team
Experts from Chinese jailbreakers Pangu Lab, have recently discovered the ZipperDown flaw that could affect roughly 10% of iOS Apps.
ZipperDown, is a recently discovered vulnerability that could affect thousands of iOS apps and maybe also Android users.
The ZipperDown flaw was first reported by experts from Chinese jailbreakers Pangu Lab, that described it as described as a programming error.
The experts estimate 15,978 out of 168,951 iOS apps are affected, roughly 10% of the total. The list of affected apps includes popular applications such as Weibo, MOMO, NetEase Music, QQ Music and Kwai.
“While auditing iOS Apps from various customers, Pangu Lab noticed a common programming error, which leads to severe consequences such as data overwritten and even code execution in the context of affected Apps.” states the report published by the Pangu Lab.
“We created a signature for the issue and performed a large-scale search on our App analysis platform Janus. Surprisingly, we found that round 10% iOS Apps might be affected by the same or similar issues.”
Pangu Lab has not publicly released details of the flaw and are reporting the problem to the app publishers.
The hackers published a video PoC of the attack that shows a user downloading and using Weibo apps in an unsafe Wi-Fi environment. In this scenario, the attackers gain code execution in the context of user’s Weibo app by exploiting the ZipperDown vulnerability.
According to the experts, an attacker can trigger the ZipperDown flaw if at least two unusual conditions are met. The first condition sees the attacker controls the WiFi network to which the device is connected, the second condition is that the app must be running outside the iOS “sandbox.”
An attacker could exploit the flaw to run illicit applications on the affected device, but Pangu Lab added that the sandbox on both iOS and Android can effectively limit ZipperDown’s consequence.
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