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CVE-2017-7435— libzypp accepts unsigned 3rd party repo without warning

Quick assessment

Affected
SUSE libzypp
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.

libzypp（又名ZYPP）是美国Novell公司资助的一套开源的可管理引擎、驱动（例如：Linux应用程序YaST、Zypper）的工具。 libzypp 20170803之前的版本中存在安全漏洞。攻击者可通过添加未签名的YUM库利用该漏洞向用户系统中注入恶意的RPM包。

AI Predicted 5.3 Difficulty: Moderate EPSS 1.81% · P78
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I. Basic Information for CVE-2017-7435

Vulnerability Information
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Vulnerability Title
libzypp accepts unsigned 3rd party repo without warning
Source: CVE Program / CVE List V5
Vulnerability Description
In libzypp before 20170803 it was possible to add unsigned YUM repositories without warning to the user that could lead to man in the middle or malicious servers to inject malicious RPM packages into a users system.
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
libzypp 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libzypp（又名ZYPP）是美国Novell公司资助的一套开源的可管理引擎、驱动（例如：Linux应用程序YaST、Zypper）的工具。 libzypp 20170803之前的版本中存在安全漏洞。攻击者可通过添加未签名的YUM库利用该漏洞向用户系统中注入恶意的RPM包。
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
SUSE libzypp unspecified ~ 20170803 -

II. Public POCs for CVE-2017-7435

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III. Intelligence Information for CVE-2017-7435

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Vendor Advisories for CVE-2017-7435 (2)

Mailing List Discussions for CVE-2017-7435 (1)

Same Patch Batch · SUSE · 2018-03-01 · 10 CVEs total

CVE-2017-14798 local privilege escalation in SUSE postgresql init script
CVE-2017-14804 package builds could use directory traversal to write outside of target area
CVE-2017-7436 libzypp accepts unsigned packages even when configured to check signatures
CVE-2017-9268 open-build-service retrigger / wipebinaries hitting the wrong project bypassing access per
CVE-2017-9269 lack of keypinning in libzypp could lead to repository switching
CVE-2017-9270 post-auth arbitrary file write on cryptctl server
CVE-2017-9271 proxy credentials written to log files by zypper
CVE-2017-9274 osc executes spec code during "osc commit"
CVE-2017-9286 nextcloud package security issues with /srv/www/htdocs

IV. Related Vulnerabilities

Same product: libzypp
Same vendor: SUSE

V. Comments for CVE-2017-7435

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