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CWE-287

4,461 CVEs • Abstraction: Class • Likelihood of Exploit: High

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

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CVEs (4,461)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Geopp
1Geo++ Gncaster
Apr 29, 2026
Feb 4, 2010
N/A· v4
N/A· v3
7.5 HIGH· v2
The HTTP Authentication implementation in Geo++ GNCASTER 1.4.0.7 and earlier uses the same nonce for all authentication, which allows remote attackers to hijack web sessions or bypass authentication via a replay attack.
1Geopp
1Geo++ Gncaster
Apr 29, 2026
Feb 4, 2010
N/A· v4
N/A· v3
4.0 MEDIUM· v2
admin.htm in Geo++ GNCASTER 1.4.0.7 and earlier does not properly enforce HTTP Digest Authentication, which allows remote authenticated users to use HTTP Basic Authentication, bypassing intended server policy.
1Fedoraproject
1Sssd
Apr 23, 2026
Jan 14, 2010
N/A· v4
N/A· v3
3.7 LOW· v2
System Security Services Daemon (SSSD) before 1.0.1, when the krb5 auth_provider is configured but the KDC is unreachable, allows physically proximate attackers to authenticate, via an arbitrary password, to the screen-l...Show more
System Security Services Daemon (SSSD) before 1.0.1, when the krb5 auth_provider is configured but the KDC is unreachable, allows physically proximate attackers to authenticate, via an arbitrary password, to the screen-locking program on a workstation that has any user's Kerberos ticket-granting ticket (TGT); and might allow remote attackers to bypass intended access restrictions via vectors involving an arbitrary password in conjunction with a valid TGT.Show less
1Dbmasters
1Db Masters Multimedia Links Directory
Apr 23, 2026
Jan 6, 2010
N/A· v4
N/A· v3
7.5 HIGH· v2
admin.php in dB Masters Multimedia Links Directory 3.1.3 allows remote attackers to bypass authentication and gain administrative access via a certain value of the admin_log cookie.
1Jax Scripts
1Jax Guestbook
Apr 23, 2026
Dec 29, 2009
N/A· v4
N/A· v3
7.5 HIGH· v2
Jax Guestbook 3.5.0 allows remote attackers to bypass authentication and modify administrator settings via a direct request to admin/guestbook.admin.php.
1Iij
1Seil/b1
Apr 23, 2026
Dec 23, 2009
N/A· v4
N/A· v3
2.6 LOW· v2
The (1) CHAP and (2) MS-CHAP-V2 authentication capabilities in the PPP Access Concentrator (PPPAC) function in Internet Initiative Japan SEIL/B1 firmware 1.00 through 2.52 use the same challenge for each authentication a...Show more
The (1) CHAP and (2) MS-CHAP-V2 authentication capabilities in the PPP Access Concentrator (PPPAC) function in Internet Initiative Japan SEIL/B1 firmware 1.00 through 2.52 use the same challenge for each authentication attempt, which allows remote attackers to bypass authentication via a replay attack.Show less
1Sitecore
1Staging Module
Apr 23, 2026
Dec 21, 2009
N/A· v4
N/A· v3
6.8 MEDIUM· v2
The Staging Webservice ("sitecore modules/staging/service/api.asmx") in Sitecore Staging Module 5.4.0 rev.080625 and earlier allows remote attackers to bypass authentication and (1) upload files, (2) download files, (3)...Show more
The Staging Webservice ("sitecore modules/staging/service/api.asmx") in Sitecore Staging Module 5.4.0 rev.080625 and earlier allows remote attackers to bypass authentication and (1) upload files, (2) download files, (3) list directories, and (4) clear the server cache via crafted SOAP requests with arbitrary Username and Password values, possibly related to a direct request.Show less
1Symantec
23Backup Exec Continuous Protection Server
Veritas Application DirectorVeritas Backup Exec+20 more
Apr 23, 2026
Dec 11, 2009
N/A· v4
N/A· v3
10.0 HIGH· v2
VRTSweb.exe in VRTSweb in Symantec Backup Exec Continuous Protection Server (CPS) 11d, 12.0, and 12.5; Veritas NetBackup Operations Manager (NOM) 6.0 GA through 6.5.5; Veritas Backup Reporter (VBR) 6.0 GA through 6.6; Ve...Show more
VRTSweb.exe in VRTSweb in Symantec Backup Exec Continuous Protection Server (CPS) 11d, 12.0, and 12.5; Veritas NetBackup Operations Manager (NOM) 6.0 GA through 6.5.5; Veritas Backup Reporter (VBR) 6.0 GA through 6.6; Veritas Storage Foundation (SF) 3.5; Veritas Storage Foundation for Windows High Availability (SFWHA) 4.3MP2, 5.0, 5.0RP1a, 5.0RP2, 5.1, and 5.1AP1; Veritas Storage Foundation for High Availability (SFHA) 3.5; Veritas Storage Foundation for Oracle (SFO) 4.1, 5.0, and 5.0.1; Veritas Storage Foundation for DB2 4.1 and 5.0; Veritas Storage Foundation for Sybase 4.1 and 5.0; Veritas Storage Foundation for Oracle Real Application Cluster (SFRAC) 3.5, 4.0, 4.1, and 5.0; Veritas Storage Foundation Manager (SFM) 1.0, 1.0 MP1, 1.1, 1.1.1Ux, 1.1.1Win, and 2.0; Veritas Cluster Server (VCS) 3.5, 4.0, 4.1, and 5.0; Veritas Cluster Server One (VCSOne) 2.0, 2.0.1, and 2.0.2; Veritas Application Director (VAD) 1.1 and 1.1 Platform Expansion; Veritas Cluster Server Management Console (VCSMC) 5.1, 5.5, and 5.5.1; Veritas Storage Foundation Cluster File System (SFCFS) 3.5, 4.0, 4.1, and 5.0; Veritas Storage Foundation Cluster File System for Oracle RAC (SFCFS RAC) 5.0; Veritas Command Central Storage (CCS) 4.x, 5.0, and 5.1; Veritas Command Central Enterprise Reporter (CC-ER) 5.0 GA, 5.0 MP1, 5.0 MP1RP1, and 5.1; Veritas Command Central Storage Change Manager (CC-SCM) 5.0 and 5.1; and Veritas MicroMeasure 5.0 does not properly validate authentication requests, which allows remote attackers to trigger the unpacking of a WAR archive, and execute arbitrary code in the contained files, via crafted data to TCP port 14300.Show less
1Microsoft
2Windows Server 2008
Windows Vista
Apr 23, 2026
Dec 9, 2009
N/A· v4
N/A· v3
10.0 HIGH· v2
The Internet Authentication Service (IAS) in Microsoft Windows Vista SP2 and Server 2008 SP2 does not properly validate MS-CHAP v2 Protected Extensible Authentication Protocol (PEAP) authentication requests, which allows...Show more
The Internet Authentication Service (IAS) in Microsoft Windows Vista SP2 and Server 2008 SP2 does not properly validate MS-CHAP v2 Protected Extensible Authentication Protocol (PEAP) authentication requests, which allows remote attackers to execute arbitrary code via crafted structures in a malformed request, aka "Internet Authentication Service Memory Corruption Vulnerability."Show less
1Jonijnm
1Com Kide
Apr 23, 2026
Dec 8, 2009
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The Kide Shoutbox (com_kide) component 0.4.6 for Joomla! does not properly perform authentication, which allows remote attackers to post messages with an arbitrary account name via an insertar action to index.php. NOTE:...Show more
The Kide Shoutbox (com_kide) component 0.4.6 for Joomla! does not properly perform authentication, which allows remote attackers to post messages with an arbitrary account name via an insertar action to index.php. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.Show less
1Bestpractical
1Rt
Apr 23, 2026
Dec 2, 2009
N/A· v4
N/A· v3
5.8 MEDIUM· v2
Session fixation vulnerability in html/Elements/SetupSessionCookie in Best Practical Solutions RT 3.0.0 through 3.6.9 and 3.8.x through 3.8.5 allows remote attackers to hijack web sessions by setting the session identifi...Show more
Session fixation vulnerability in html/Elements/SetupSessionCookie in Best Practical Solutions RT 3.0.0 through 3.6.9 and 3.8.x through 3.8.5 allows remote attackers to hijack web sessions by setting the session identifier via a manipulation that leverages "HTTP access to the RT server," a related issue to CVE-2009-3585.Show less
1Bestpractical
1Rt
Apr 23, 2026
Dec 2, 2009
N/A· v4
N/A· v3
5.8 MEDIUM· v2
Session fixation vulnerability in html/Elements/SetupSessionCookie in Best Practical Solutions RT 3.0.0 through 3.6.9 and 3.8.x through 3.8.5 allows remote attackers to hijack web sessions by setting the session identifi...Show more
Session fixation vulnerability in html/Elements/SetupSessionCookie in Best Practical Solutions RT 3.0.0 through 3.6.9 and 3.8.x through 3.8.5 allows remote attackers to hijack web sessions by setting the session identifier via a manipulation that leverages a second web server within the same domain.Show less
1Gnu
1Grub 2
Apr 23, 2026
Dec 1, 2009
N/A· v4
N/A· v3
7.2 HIGH· v2
GNU GRand Unified Bootloader (GRUB) 2 1.97 only compares the submitted portion of a password with the actual password, which makes it easier for physically proximate attackers to conduct brute force attacks and bypass au...Show more
GNU GRand Unified Bootloader (GRUB) 2 1.97 only compares the submitted portion of a password with the actual password, which makes it easier for physically proximate attackers to conduct brute force attacks and bypass authentication by submitting a password whose length is 1.Show less
1Companionway
1Myphile
Apr 23, 2026
Nov 29, 2009
N/A· v4
N/A· v3
7.5 HIGH· v2
myPhile 1.2.1 allows remote attackers to bypass authentication via an empty password. NOTE: some of these details are obtained from third party information.
1Telepark
1Telepark.wiki
Apr 23, 2026
Nov 29, 2009
N/A· v4
N/A· v3
5.0 MEDIUM· v2
telepark.wiki 2.4.23 and earlier allows remote attackers to bypass authorization and (1) delete arbitrary pages via a modified pageID parameter to ajax/deletePage.php or (2) delete arbitrary comments via a modified pageI...Show more
telepark.wiki 2.4.23 and earlier allows remote attackers to bypass authorization and (1) delete arbitrary pages via a modified pageID parameter to ajax/deletePage.php or (2) delete arbitrary comments via a modified pageID parameter to ajax/deleteComment.php.Show less
1Arcadetradescript
1Arcade Trade Script
Apr 23, 2026
Nov 18, 2009
N/A· v4
N/A· v3
7.5 HIGH· v2
Arcade Trade Script 1.0 allows remote attackers to bypass authentication and gain administrative access by setting the adminLoggedIn cookie to true.
1Sun
2Virtual Desktop Infrastructure
Virtualbox
Apr 23, 2026
Nov 10, 2009
N/A· v4
N/A· v3
7.5 HIGH· v2
The VirtualBox 2.0.8 and 2.0.10 web service in Sun Virtual Desktop Infrastructure (VDI) 3.0 does not require authentication, which allows remote attackers to obtain unspecified access via vectors involving requests to an...Show more
The VirtualBox 2.0.8 and 2.0.10 web service in Sun Virtual Desktop Infrastructure (VDI) 3.0 does not require authentication, which allows remote attackers to obtain unspecified access via vectors involving requests to an Apache HTTP Server.Show less
1Novell
1Edirectory
Apr 23, 2026
Nov 4, 2009
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The NDSD process in Novell eDirectory 8.7.3 before 8.7.3.10 ftf2 and eDirectory 8.8 before 8.8.5 ftf1 does not properly handle certain LDAP search requests, which allows remote attackers to cause a denial of service (app...Show more
The NDSD process in Novell eDirectory 8.7.3 before 8.7.3.10 ftf2 and eDirectory 8.8 before 8.8.5 ftf1 does not properly handle certain LDAP search requests, which allows remote attackers to cause a denial of service (application hang) via a search request with a NULL BaseDN value.Show less
1Typo3
1Typo3
Apr 23, 2026
Nov 2, 2009
N/A· v4
N/A· v3
6.8 MEDIUM· v2
The Install Tool subcomponent in TYPO3 4.0.13 and earlier, 4.1.x before 4.1.13, 4.2.x before 4.2.10, and 4.3.x before 4.3beta2 allows remote attackers to gain access by using only the password's md5 hash as a credential.
1Linux
1Linux Kernel
Apr 23, 2026
Oct 30, 2009
N/A· v4
N/A· v3
7.8 HIGH· v2
The lookup_cb_cred function in fs/nfsd/nfs4callback.c in the nfsd4 subsystem in the Linux kernel before 2.6.31.2 attempts to access a credentials cache even when a client specifies the AUTH_NULL authentication flavor, wh...Show more
The lookup_cb_cred function in fs/nfsd/nfs4callback.c in the nfsd4 subsystem in the Linux kernel before 2.6.31.2 attempts to access a credentials cache even when a client specifies the AUTH_NULL authentication flavor, which allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via an NFSv4 mount request.Show less