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CVE-2017-12173

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2018-1877-01
Posted Jun 20, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-1877-01 - The System Security Services Daemon service provides a set of daemons to manage access to remote directories and authentication mechanisms. It also provides the Name Service Switch and the Pluggable Authentication Modules interfaces toward the system, and a pluggable back-end system to connect to multiple different account sources. The ding-libs packages contain a set of libraries used by the System Security Services Daemon as well as other projects, and provide functions to manipulate file system path names, a hash table to manage storage and access time properties, a data type to collect data in a hierarchical structure, a dynamically growing, reference-counted array, and a library to process configuration files in initialization format into a library collection data structure . Issues addressed include an unsanitized input vulnerability.

tags | advisory, remote
systems | linux, redhat
advisories | CVE-2017-12173
SHA-256 | c71225130bd3ab1c0a26635e211bffd670b8726cc8a92cc1f60dca7d398961cb
Ubuntu Security Notice USN-3526-1
Posted Jan 11, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3526-1 - It was discovered that SSSD incorrectly handled certain inputs when querying its local cache. An attacker could use this to inject arbitrary code and expose sensitive information.

tags | advisory, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2017-12173
SHA-256 | b7922c4a9c676f88b0fe0cc2f64efa4fa7aa679e609d7ddd641dc4c26ac2454a
Red Hat Security Advisory 2017-3379-01
Posted Dec 4, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-3379-01 - The System Security Services Daemon service provides a set of daemons to manage access to remote directories and authentication mechanisms. It also provides the Name Service Switch and the Pluggable Authentication Modules interfaces toward the system, and a pluggable back-end system to connect to multiple different account sources. Security Fix: It was found that sssd's sysdb_search_user_by_upn_res() function 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.

tags | advisory, remote, local
systems | linux, redhat
advisories | CVE-2017-12173
SHA-256 | dea99acda0368239d3aafad33e3fc3ca13f9ec7dc4fe436b72b967535a811c17
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