CVE-2013-6770: The CyanogenMod/ClockWorkMod/Koush Superuser package 1.0.2.1 for Android 4.3 and 4.4 does not properly restric

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HIGH 7.6DOWNGRADEMITIGATE

CVE-2013-6770 is a high-severity flaw (CVSS 7.6) affecting superuser, android. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The CyanogenMod/ClockWorkMod/Koush Superuser package 1.0.2.1 for Android 4.3 and 4.4 does not properly restrict the set of users who can execute /system/xbin/su with the --daemon option, which allows attackers to gain privileges by leveraging ADB shell access and a certain Linux UID, and then creating a Trojan horse script.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.6 (High)
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-264
Published	2014-03-31
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: google · koushik dutta

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-03-31 14:58 UTCPublished CVE record published
2026-06-17 00:00 UTCUpdated Record last modified

koushik dutta superuser DOWNGRADE

Affected: 1.0.2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.2.1

1. Check installed version

apt-cache policy superuser || rpm -q superuser || superuser --version

2. No fixed release: DOWNGRADE to a release before 1.0.2.1 (Debian / Ubuntu)

apt-cache madison superuser sudo apt install superuser=<VERSION_BEFORE_1.0.2.1> sudo apt-mark hold superuser

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list superuser sudo dnf downgrade superuser-<VERSION_BEFORE_1.0.2.1> sudo dnf versionlock add superuser

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

google android MITIGATE

Affected: 4.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.4

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2013-6770?

superuser: downgrade or apply the listed mitigation; android: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2013-6770 being exploited?

CVE-2013-6770 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2013-6770 affect?

CVE-2013-6770 affects superuser, android. Severity is high (CVSS 7.6). The CyanogenMod/ClockWorkMod/Koush Superuser package 1.0.2.1 for Android 4.3 and 4.4 does not properly restrict the set of users who can execute /system/xbin/su with the --daemon option, which allows attackers to gain privileges by leveragi

How urgent is CVE-2013-6770?

Priority 45/100. High severity; Public exploit reference

Software pages

Android vulnerabilities

Related CVEs

CVE-2023-45899 HIGH 7.5 UPGRADE An issue in the component SuperUserSetuserModuleFrontController:init() of idnovate superuser before v2.4.2 all
CVE-2013-6774 HIGH 10.0 DOWNGRADE DOWNGRADE Untrusted search path vulnerability in the ChainsDD Superuser package 3.1.3 for Android 4.2.x and earlier, Cya
CVE-2013-6769 HIGH 10.0 DOWNGRADE The CyanogenMod/ClockWorkMod/Koush Superuser package 1.0.2.1 for Android allows attackers to gain privileges v
CVE-2013-6768 MEDIUM 5.0 DOWNGRADE Untrusted search path vulnerability in the CyanogenMod/ClockWorkMod/Koush Superuser package 1.0.2.1 for Androi

References

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