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CVE-2015-1340— chmod race in doUidshiftIntoContainer

Quick assessment

Affected
Ubuntu LXD
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LXD是一款基于Linux系统用于管理应用程序的容器。 LXD 0.19-0ubuntu5之前版本中存在安全漏洞，该漏洞源于程序没有安全地调用Chmod()。攻击者可利用该漏洞将系统上的文件更改成任意状态。

AI Predicted 8.8 Difficulty: Moderate EPSS 0.90% · P58

Possible ATT&CK Techniques 2 AI

T1078 · Valid Accounts T1079
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I. Basic Information for CVE-2015-1340

Vulnerability Information
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Vulnerability Title
chmod race in doUidshiftIntoContainer
Source: CVE Program / CVE List V5
Vulnerability Description
LXD before version 0.19-0ubuntu5 doUidshiftIntoContainer() has an unsafe Chmod() call that races against the stat in the Filepath.Walk() function. A symbolic link created in that window could cause any file on the system to have any mode of the attacker's choice.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
LXD 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LXD是一款基于Linux系统用于管理应用程序的容器。 LXD 0.19-0ubuntu5之前版本中存在安全漏洞，该漏洞源于程序没有安全地调用Chmod()。攻击者可利用该漏洞将系统上的文件更改成任意状态。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Ubuntu LXD unspecified ~ 0.19-0ubuntu5 -

II. Public POCs for CVE-2015-1340

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III. Intelligence Information for CVE-2015-1340

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Patches & Fixes for CVE-2015-1340 (1)

Same Patch Batch · Ubuntu · 2019-04-22 · 15 CVEs total

CVE-2014-1426 get_file_by_name does not check owner
CVE-2014-1427 MAAS API vulnerable to CSRF attack
CVE-2014-1428 uuid.uuid1() is not suitable as an unguessable identifier/token
CVE-2015-1316 Juju Joyent provider uploads user's private ssh key by default
CVE-2015-1320 Probe-and-enlist for SeaMicro chassis writes password to the log
CVE-2015-1326 python-dbusmock arbitrary code execution or file overwrite when templates are loaded from
CVE-2015-1327 Content-hub DBUS API doesn't prevent confined apps from passing paths to files without acc
CVE-2015-1341 Apport privilege escalation through Python module imports
CVE-2015-1343 unity-scope-gdrive search feature logs search terms to syslog
CVE-2016-1573 Using a specially crafted fallback art property, scopes can execute arbitrary QML code in
CVE-2016-1579 UDM doesn't check for confinement before running post-processing commands
CVE-2016-1584 Unity8 converged application lifecycle allows background applications to use on-screen key
CVE-2016-1586 Oxide 输入验证错误漏洞
CVE-2016-1587 Snapweb interface 访问控制错误漏洞

IV. Related Vulnerabilities

Same product: LXD
Same vendor: Ubuntu

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