CVE-2017-12173: fedoraproject sssd Improper Input Validation
Vulnerability summary
CVE-2017-12173 is a high (CVSS 8.8) Improper Input Validation vulnerability in fedoraproject sssd. EPSS estimates a 1.50% chance of exploitation in the next 30 days, higher than 73.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 27-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
It was found that sssd's sysdb_search_user_by_upn_res() function before 1.16.0 did not sanitize requests when querying its local cache and was vulnerable to injection. In a centralized login environment, if a password hash was locally cached for a given user, an authenticated attacker could use this flaw to retrieve it.
CVSS metrics
6 scores · 5 sources · 2 versions- CVE.orgCNA4.3MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NDiffers
- OSV · Red hatEcosystem advisory · calculated4.3MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated4.3MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NDiffers
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.50%
Chance of exploitation in the next 30 days
Percentile
74%
Versus all other CVEs
30-day change
0.00 pp
From 1.50% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Affected systems
Redhat54 products
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_server_aus7.4
- enterprise_linux_server_eus7.4 | 7.5
- enterprise_linux_workstation6.0 | 7.0
Suse9 products
- sssd&distro=SUSE Linux Enterprise Desktop 12 SP2< 1.13.4-34.7.1
- sssd&distro=SUSE Linux Enterprise Desktop 12 SP3< 1.13.4-34.7.1
- sssd&distro=SUSE Linux Enterprise Server 12 SP2< 1.13.4-34.7.1
- sssd&distro=SUSE Linux Enterprise Server 12 SP3< 1.13.4-34.7.1
- sssd&distro=SUSE Linux Enterprise Server for Raspberry Pi 12 SP2< 1.13.4-34.7.1
Debian1 product
- sssd< 1.15.3-2
Fedoraproject1 product
- sssd< 1.16.0
Mageia1 product
- sssd< 1.13.4-9.1.mga6
Sssd1 product
- sssd1.16.0
Ubuntu1 product
- sssd< 1.13.4-1ubuntu1.10
7 vendors · 68 products
References
30 links- bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12173X Refsource CONFIRMIssue TrackingPatchVendor Advisory
