MIT Kerberos 5 ftpd.c reply Remote Code Execution ⚔ [Disputed]

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.4$0-$5k0.00

Summaryinfo

A vulnerability was found in MIT Kerberos 5 and classified as very critical. Impacted is the function reply of the file ftpd.c of the component Kerberos. Executing a manipulation can lead to Remote Code Execution. This vulnerability is handled as CVE-2007-5894. There is not any exploit available. There are still doubts about whether this vulnerability truly exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in MIT Kerberos 5 (Network Authentication Software) and classified as very critical. This vulnerability affects the function reply of the file ftpd.c of the component Kerberos. The manipulation with an unknown input leads to a remote code execution vulnerability. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

** DISPUTED ** The reply function in ftpd.c in the gssftp ftpd in MIT Kerberos 5 (krb5) does not initialize the length variable when auth_type has a certain value, which has unknown impact and remote authenticated attack vectors. NOTE: the original disclosure misidentifies the conditions under which the uninitialized variable is used. NOTE: the vendor disputes this issue, stating " The length variable is only uninitialized if auth_type is neither the KERBEROS_V4 nor GSSAPI ; this condition cannot occur in the unmodified source code."

The bug was discovered 11/15/2007. The weakness was released 12/08/2007 with Gentoo (Website). The advisory is available at issues.rpath.com. This vulnerability was named CVE-2007-5894 since 11/08/2007. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/08/2024).

The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $5k-$25k. The real existence of this vulnerability is still doubted at the moment. The vulnerability scanner Nessus provides a plugin with the ID 29991 (openSUSE 10 Security Update : krb5 (krb5-4851)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165712 (SUSE Enterprise Linux Security Update (SUSE-SR:2008:002)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (38923), Tenable (29991), SecurityFocus (BID 26750†), OSVDB (44333†) and Secunia (SA28636†). Entries connected to this vulnerability are available at VDB-3410, VDB-3547, VDB-37647 and VDB-39622. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Remote Code Execution
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 29991
Nessus Name: openSUSE 10 Security Update : krb5 (krb5-4851)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 60623
OpenVAS Name: Gentoo Security Advisory GLSA 200803-31 (mit-krb5)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/08/2007 🔍
11/15/2007 +7 days 🔍
11/15/2007 +0 days 🔍
12/05/2007 +20 days 🔍
12/06/2007 +1 days 🔍
12/08/2007 +2 days 🔍
12/20/2007 +12 days 🔍
01/16/2008 +27 days 🔍
01/21/2008 +5 days 🔍
04/12/2008 +82 days 🔍
03/16/2015 +2528 days 🔍
08/08/2024 +3433 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: issues.rpath.com⛔
Organization: Gentoo
Status: Not defined
Confirmation: 🔍
Disputed: 🔍

CVE: CVE-2007-5894 (🔍)
GCVE (CVE): GCVE-0-2007-5894
GCVE (VulDB): GCVE-100-39946
X-Force: 38923
SecurityFocus: 26750 - MIT Kerberos Multiple Memory Corruption Vulnerabilities
Secunia: 28636
OSVDB: 44333 - MIT Kerberos 5 (krb5) gssftp ftpd ftpd.c reply Function Security Issue
Vulnerability Center: 17425 - MIT Kerberos 5 ftpd.c Reply Function Allows Remote DoS, Medium

See also: 🔍

Entryinfo

Created: 03/16/2015 13:43
Updated: 08/08/2024 17:51
Changes: 03/16/2015 13:43 (80), 08/04/2019 08:31 (6), 08/08/2024 17:51 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!