Vim 6.4/7.0/7.1/7.1.38 helptags format string

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

A vulnerability was found in Vim 6.4/7.0/7.1/7.1.38 (Word Processing Software). It has been declared as critical. This vulnerability affects an unknown function. The manipulation of the argument helptags with an unknown input leads to a format string vulnerability. The CWE definition for the vulnerability is CWE-134. The product uses a function that accepts a format string as an argument, but the format string originates from an external source. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Format string vulnerability in the helptags_one function in src/ex_cmds.c in Vim 6.4 and earlier, and 7.x up to 7.1, allows user-assisted remote attackers to execute arbitrary code via format string specifiers in a help-tags tag in a help file, related to the helptags command.

The bug was discovered 07/27/2007. The weakness was published 07/27/2007 by Ulf Harnhammar with Secunia Research (Website). The advisory is shared for download at secunia.com. This vulnerability was named CVE-2007-2953 since 05/31/2007. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/23/2019).

It is declared as proof-of-concept. As 0-day the estimated underground price was around $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 67722 (Oracle Linux 5 : vim (ELSA-2008-0580)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117225 (CentOS Security Update for Vim (CESA-2008:0580)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at ftp.vim.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (35655) and Tenable (67722). Similar entry is available at 46699.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Format string
CWE: CWE-134 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67722
Nessus Name: Oracle Linux 5 : vim (ELSA-2008-0580)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 58584
OpenVAS Name: Debian Security Advisory DSA 1364-1 (vim)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Disable
Status: 🔍

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Patch: ftp.vim.org

Timelineinfo

05/31/2007 🔍
07/27/2007 +57 days 🔍
07/27/2007 +0 days 🔍
07/27/2007 +0 days 🔍
07/27/2007 +0 days 🔍
07/27/2007 +0 days 🔍
07/31/2007 +4 days 🔍
08/02/2007 +2 days 🔍
08/07/2007 +5 days 🔍
01/07/2009 +519 days 🔍
01/16/2009 +9 days 🔍
07/12/2013 +1637 days 🔍
07/23/2019 +2202 days 🔍

Sourcesinfo

Advisory: secunia.com⛔
Researcher: Ulf Harnhammar
Organization: Secunia Research
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-2953 (🔍)
OVAL: 🔍

X-Force: 35655 - Vim helptags_one() function code execution, Medium Risk
Vulnerability Center: 15819 - Vim Format String Vulnerability Allows Remote Code Execution Vulnerability, Medium
SecurityFocus: 25095 - Vim HelpTags Command Remote Format String Vulnerability
Secunia: 33410
OSVDB: 51434 - Vim src/ex_cmds.c helptags_one Function helptags Format String
Vupen: ADV-2009-0904

See also: 🔍

Entryinfo

Created: 08/02/2007 17:54
Updated: 07/23/2019 10:42
Changes: 08/02/2007 17:54 (95), 07/23/2019 10:42 (1)
Complete: 🔍
Cache ID: 3:C9A:103

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