Details: This vulnerability allows for arbitrary code execution in the context of many apps and services and results in elevation of privileges. There is a Proof-of-Concept exploit against the Google Nexus 5 device, that achieves code execution inside the highly privileged system_server process, and then either replaces an existing arbitrary application on the device with our own malware app or changes the device’s SELinux policy. For some other devices, it is also possible to gain kernel code execution by loading an arbitrary kernel modules. This vulnerability was responsibly disclosed to the Android Security Team which tagged it as CVE-2015-3825 internally as ANDROID-21437603/ANDROID-21583849 and patched Android 4.4 / 5.x / M and Google Play Services. [woot15-paper-peles]
CVE-2015-3825 is the wrong CVE number (duplicate), CVE-2015-3837 should be used instead [CVE-2015-3825]
The OpenSSLX509Certificate class in org/conscrypt/OpenSSLX509Certificate.java in Android before 5.1.1 LMY48I improperly includes certain context data during serialization and deserialization, which allows attackers to execute arbitrary code via an application that sends a crafted Intent, aka internal bug 21437603. [CVE-2015-3837]
Details: APK signature verification does not check name lengths correctly, creating a difference between how the zip files are verified compared with how they are extracted which allows files in an existing APK to be replaced with new files. [saurik-19]
Exploited by RockMyMoto [androidpolice-rockmymoto]
Details: The software does not properly validate an application's certificate chain. An application can supply a specially crafted application identity certificate to impersonate a privileged application and gain access to vendor-specific device administration extensions. The vulnerability resides in the createChain() and findCert() functions of the Android JarUtils class. [securitytracker-1030654]
Google bug 13678484 [blackhat-briefing-fakeid]
Discovered by: Jeff Forristal of Bluebox [bluebox-fakeid] on: Unknown
Fixed versions: there is no single, specific “fixed” version of Android. In fact, multiple vendors are maintaining the same prior version number, and only patching the functionality. We have confirmed “fixed” versions existing within the ranges of 4.1, 4.2, 4.3, and 4.4 [bluebox-fakeid]
Details: The futex_requeue function in kernel/futex.c in the Linux kernel through 3.14.5 does not ensure that calls have two different futex addresses, which allows local users to gain privileges via a crafted FUTEX_REQUEUE command that facilitates unsafe waiter modification. [CVE-2014-3153]
Details: Drake said that the vulnerabilities can be exploited by sending a single multimedia text message to an unpatched Android smartphone. While the exploit is deadly, in some cases, where phones parse the attack code prior to the message being opened, the exploits are silent and the user would have little chance of defending their data. [techworm-stagefright]
Stagefright is the media playback service for Android, introduced in Android 2.2 (Froyo). Stagefright in versions of Android prior to 5.1.1_r9 may contain multiple vulnerabilities, including several integer overflows, which may allow a remote attacker to execute code on the device. [cert-kb-stagefright]
Details: Meet Stagefright 2.0, a set of two vulnerabilities that manifest when processing specially crafted MP3 audio or MP4 video files. The first vulnerability (in libutils) impacts almost every Android device since version 1.0 released in 2008. We found methods to trigger that vulnerability in devices running version 5.0 and up using the second vulnerability (in libstagefright). Google assigned CVE-2015-6602 to vulnerability in libutils. [zimperium-stagefright2]
Details: Insufficient paramter checking for asec container creation allows an asec container to be mounted over part of the filesystem using directory traversal if the app has the ASEC_* permissions such as ASEC_CREATE [cassidian-vold-asec]
There is an adb tethered root explot for motorola phones [xda-developers-pie-exploit]
Affected devices: Motorola devices [xda-developers-pie-exploit], Proper SEAndroid policies do block this, Nexus 5, Samsung S4/5/Note3, LG Flex, Sony Z2 devices etc should have this mitigated. Nexus 4 if it hasn't been updated to 4.4.3 nor reset since OTA to 4.4 [plus-jcase-pie]
Details: Stack-based buffer overflow in the encode_key function in /system/bin/keystore in the KeyStore service in Android 4.3 allows attackers to execute arbitrary code, and consequently obtain sensitive key information or bypass intended restrictions on cryptographic operations, via a long key name. [CVE-2014-3100]
Details: In Android <5.0, java.io.ObjectInputStream did not check whether the Object that is being deserialized is actually serializable. That issue was fixed in Android 5.0. This means that when ObjectInputStream is used on untrusted inputs, an attacker can cause an instance of any class with a non-private parameterless constructor to be created. All fields of that instance can be set to arbitrary values. The malicious object will then typically either be ignored or cast to a type to which it doesn't fit, implying that no methods will be called on it and no data from it will be used. However, when it is collected by the GC, the GC will call the object's finalize method. [fulldisclosure-ois]
luni/src/main/java/java/io/ObjectInputStream.java in the java.io.ObjectInputStream implementation in Android before 5.0.0 does not verify that deserialization will result in an object that met the requirements for serialization, which allows attackers to execute arbitrary code via a crafted finalize method for a serialized object in an ArrayMap Parcel within an intent sent to system_service, as demonstrated by the finalize method of android.os.BinderProxy, aka Bug 15874291. [CVE-2014-7911]
A POC local root exploit is available [CVE-2014-7911_poc]
