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CVE-2011-0002

22
FAUCET Score

CVE-2011-0002 describes a vulnerability in libuser before version 0.57, where new LDAP user accounts are created with a cleartext password of "!!" or "x", making it easier for remote attackers to gain unauthorized access. This vulnerability has a CVSS score of 6.4 (medium severity), indicating a network-based attack with low complexity and potential for partial confidentiality and integrity impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.56.18CPE matchmatch criteria
cpe:2.3:a:miloslav_trmac:libuser:*:*:*:*:*:*:*:*
0.1CPE matchmatch criteria
cpe:2.3:a:miloslav_trmac:libuser:0.1:*:*:*:*:*:*:*
0.2CPE matchmatch criteria
cpe:2.3:a:miloslav_trmac:libuser:0.2:*:*:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:miloslav_trmac:libuser:0.3:*:*:*:*:*:*:*
0.4CPE matchmatch criteria
cpe:2.3:a:miloslav_trmac:libuser:0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.4MEDIUM

AV:N/AC:L/Au:N/C:P/I:P/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.79%
Probability of exploitation in next 30 days
EPSS Percentile
88.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0379 is in the 85th percentile among its peer group of 23,690 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: libuser-0:0.52.5-1.1.el4_8.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libuser-0:0.54.7-2.1.el5_5.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libuser-0:0.56.13-4.el6_0.1
View patch

Vendor Advisories (1)

redhatCVE-2011-0002Moderate

libuser creates LDAP users with a default password

Jan 10, 2011

References

kb.juniper.net / InfoCenter/index
lists.fedoraproject.org / pipermail/package-announce/2011-January/053365.html
lists.fedoraproject.org / pipermail/package-announce/2011-January/053378.html
bugzilla.redhat.com / show_bug.cgi
Exploit
secunia.com / advisories/42891
Vendor Advisory
secunia.com / advisories/42966
Vendor Advisory
secunia.com / advisories/43047
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/64677
fedorahosted.org / libuser/browser/NEWS
mandriva.com / security/advisories
osvdb.org / 70421
redhat.com / support/errata/RHSA-2011-0170.html
securityfocus.com / bid/45791
vupen.com / english/advisories/2011/0184
Vendor Advisory
vupen.com / english/advisories/2011/0201
vupen.com / english/advisories/2011/0226