CVE-2019-18900

Cookie disclosure via world-readable cookie store

Published Jan 24, 2020 · Updated Sep 16, 2024

Incorrect file permissions in libzypp on SUSE CaaS Platform 3.0 and SLES 12 and 15 allow local users to read private cookies. The curl backend stores authentication cookies in /var/lib/YaST2/cookies while the file is readable by every local account. Any local account can copy cookies used for subscription authentication, but the flaw does not grant direct write access or interrupt service.

CVSS severity3.3
Low
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect file permissions in libzypp on SUSE CaaS Platform 3.0 and SLES 12 and 15 allow local users to read private cookies. The curl backend stores authentication cookies in /var/lib/YaST2/cookies while the file is readable by every local account. Any local account can copy cookies used for subscription authentication, but the flaw does not grant direct write access or interrupt service.

The record

CVE
CVE-2019-18900
Published
Jan 24, 2020
Updated
Sep 16, 2024
Vendor
SUSE
Product
SUSE CaaS Platform
Classifications
CWE-276, T1539
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 24, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=libzypp <16.21.2-27.68.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

SUSE · SUSE CaaS Platformversion=libzypp <16.21.2-27.68.1
SUSE · SUSE Linux Enterprise Serverversion=libzypp <16.21.2-2.45.1; version=libzypp 17.19.0-3.34.1

Published CVSS scores

4.0SUSECVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.3NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
2.1NVDAV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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